Einsteinium is a chemical element with atomic number 99 which means there are 99 protons and 99 electrons in the atomic structure. The chemical symbol for Rubidium is Rb. The name xenon for this gas comes from the Greek word ξένον [xenon], neuter singular form of ξένος [xenos], meaning ‘foreign(er)’, ‘strange(r)’, or ‘guest’. Carbon is one of the few elements known since antiquity. Mendelevium is a chemical element with atomic number 101 which means there are 101 protons and 101 electrons in the atomic structure. Main purpose of this project is to help the public learn some interesting and important information about chemical elements, ionizing radiation, thermal engineering, reactor physics and nuclear energy. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. ThoughtCo uses cookies to provide you with a great user experience. Alternatively, you can also calculate the atomic number, atomic mass, and charge. Cerium is also traditionally considered one of the rare-earth elements. Uranium is a chemical element with atomic number 92 which means there are 92 protons and 92 electrons in the atomic structure. Under standard conditions, it is the lightest metal and the lightest solid element. It is by mass the most common element on Earth, forming much of Earth’s outer and inner core. Although classified as a rare earth element, samarium is the 40th most abundant element in the Earth’s crust and is more common than such metals as tin. In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry. Number of neutrons + number of electrons. Holmium is a part of the lanthanide series, holmium is a rare-earth element. Selenium is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. Nobelium is the tenth transuranic element and is the penultimate member of the actinide series. ***** - atomic number 17. word on "C". Gold is a transition metal and a group 11 element. By mass, aluminium makes up about 8% of the Earth’s crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below. Chlorine is a member of the halogen group of elements and directly combines with almost all of the other elements. Approximately 60–70% of thallium production is used in the electronics industry. Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226. The chemical symbol for Uranium is U. The metal is found in the Earth’s crust in the pure, free elemental form (“native silver”), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Chlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity, behind only oxygen and fluorine. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. Neptunium is the first transuranic element. Europium is a moderately hard, silvery metal which readily oxidizes in air and water. Like all alkali metals, lithium is highly reactive and flammable, and is stored in mineral oil. Ruthenium is a chemical element with atomic number 44 which means there are 44 protons and 44 electrons in the atomic structure. Chlorine is a chemical element with atomic number 17 and element symbol Cl. The chemical symbol for Gadolinium is Gd. Discoverer: Corson, Dale R. and Mackenzie, K. R. The actinide or actinoid series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. The chemical symbol for Nickel is Ni. Terbium is a chemical element with atomic number 65 which means there are 65 protons and 65 electrons in the atomic structure. In nuclear industry gadolinium is commonly used as a neutron absorber due to very high neutron absorbtion cross-section of two isotopes 155Gd and 157Gd. Radon is a chemical element with atomic number 86 which means there are 86 protons and 86 electrons in the atomic structure. It is used for disinfecting drinking water. Rhodium is a chemical element with atomic number 45 which means there are 45 protons and 45 electrons in the atomic structure. Oxygen is a chemical element with atomic number 8 which means there are 8 protons and 8 electrons in the atomic structure. The chemical symbol for Aluminum is Al. 22. Erbium is a chemical element with atomic number 68 which means there are 68 protons and 68 electrons in the atomic structure. Uranium has the highest atomic weight of the primordially occurring elements. Commercially, thallium is produced as a byproduct from refining of heavy metal sulfide ores. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. In nuclear reactors, promethium equilibrium exists in power operation. Atomic Number 17. The chemical symbol for Strontium is Sr. Strontium is an alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly reactive chemically. The chemical symbol for Germanium is Ge. Uses: Chlorine is used in many everyday products. Radon is a radioactive, colorless, odorless, tasteless noble gas. Uranium is a silvery-white metal in the actinide series of the periodic table. It is even less abundant than the so-called rare earths. Its properties are thus intermediate between those of chlorine and iodine. The chemical symbol for Chromium is Cr. Iodine is a chemical element with atomic number 53 which means there are 53 protons and 53 electrons in the atomic structure. Tantalum is a chemical element with atomic number 73 which means there are 73 protons and 73 electrons in the atomic structure. The chemical symbol for Curium is Cm. It is the Pauli exclusion principle that requires the electrons in an atom to occupy different energy levels instead of them all condensing in the ground state. The atomic mass is the mass of an atom. The chemical symbol for Lead is Pb. Tellurium is far more common in the universe as a whole than on Earth. greenish-yellow gas. Periodic Table of Elements - The periodic table is a very useful listing of all 118 elements by symbol, atomic number, and atomic mass and molecular mass. Francium is a highly radioactive metal that decays into astatine, radium, and radon. Xenon is a chemical element with atomic number 54 which means there are 54 protons and 54 electrons in the atomic structure. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant. This is a list of chemical elements, sorted by atomic mass (or most stable isotope) and color coded according to type of element.Each element's atomic number, name, element symbol, and group and period numbers on the periodic table are given. Protactinium is a chemical element with atomic number 91 which means there are 91 protons and 91 electrons in the atomic structure. Antimony is a chemical element with atomic number 51 which means there are 51 protons and 51 electrons in the atomic structure. Praseodymium is the third member of the lanthanide series and is traditionally considered to be one of the rare-earth metals. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. The chemical symbol for Californium is Cf. The chemical symbol for Osmium is Os. Nickel is a chemical element with atomic number 28 which means there are 28 protons and 28 electrons in the atomic structure. Atomic Number of Oxygen. Caesium has physical and chemical properties similar to those of rubidium and potassium. Hafnium is a lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals. Chlorine has been used as a chemical warfare agent. Manganese is a chemical element with atomic number 25 which means there are 25 protons and 25 electrons in the atomic structure. Thorium is commonly found in monazite sands (rare earth metals containing phosphate mineral). Chlorine figures prominently in many organic chemistry reactions, particularly in substitutions with hydrogen. © 2019 periodic-table.org / see also Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. The chemical symbol for Tantalum is Ta. Chemically, sulfur reacts with all elements except for gold, platinum, iridium, tellurium, and the noble gases. Titanium is a lustrous transition metal with a silver color, low density, and high strength. The chemical symbol for Nobelium is No. The chemical symbol for Hafnium is Hf. Hafnium is a chemical element with atomic number 72 which means there are 72 protons and 72 electrons in the atomic structure. Iridium is a chemical element with atomic number 77 which means there are 77 protons and 77 electrons in the atomic structure. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. What is the formula for a mass number of an atom? Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. Atomic Number of Chlorine. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure. We assume no responsibility for consequences which may arise from the use of information from this website. Scandium is a chemical element with atomic number 21 which means there are 21 protons and 21 electrons in the atomic structure. The atomic mass is the mass of an atom. It is the electrons that are responsible for the chemical bavavior of atoms, and which identify the various chemical elements. Sources: In nature, chlorine is only found in the combined state, most commonly with sodium as NaCl and in carnallite (KMgCl3•6H2O) and sylvite (KCl). It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Bromine is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. 113Cd has specific absorption cross-section. The name samarium is after the mineral samarskite from which it was isolated. Aluminum is a chemical element with atomic number 13 which means there are 13 protons and 13 electrons in the atomic structure. Silver is a chemical element with atomic number 47 which means there are 47 protons and 47 electrons in the atomic structure. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide. Thulium is the thirteenth and third-last element in the lanthanide series. Occurs widely in nature as sodium chloride in seawater, but it can be very dangerous depending on how it is used. The element is obtained from chlorides by electrolysis or via the action of oxidizing agents. Chlorine gas was used as a chemical weapon during World War I. Chlorine is heavier than air and would form a deadly layer in low-lying foxholes and trenches. Cl-35 and Cl-37 are both stable isotopes with Cl-35 as the most abundant form (75.8%).Atomic Volume (cc/mol): 18.7, Specific Heat (@20°C J/g mol): 0.477 (Cl-Cl). What is Atomic Number Density - Definition. Gallium is a chemical element with atomic number 31 which means there are 31 protons and 31 electrons in the atomic structure. Dysprosium is a chemical element with atomic number 66 which means there are 66 protons and 66 electrons in the atomic structure. Chlorine belongs to the halogen element group. Its extreme rarity in the Earth’s crust, comparable to that of platinum. Neptunium metal is silvery and tarnishes when exposed to air. The chemical symbol for Lanthanum is La. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins. Element of atomic number 17 7 Little Words . Naturally occurring potassium is composed of three isotopes, of which 40K is radioactive. Rhenium is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. Tungsten is an intrinsically brittle and hard material, making it difficult to work. The chemical symbol for Titanium is Ti. Titanium is a chemical element with atomic number 22 which means there are 22 protons and 22 electrons in the atomic structure. A toxic chemical element with the atomic number 17 Some of those Crosswords are really hard to solve, that’s why we have build our website, only to help you our with the answers. They are equal to 16, 16 and 18, respectively. Curium is a hard, dense, silvery metal with a relatively high melting point and boiling point for an actinide. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present). A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. The chemical symbol for Copper is Cu. The chemical symbol for Silver is Ag. Choose your element. Neodymium is a soft silvery metal that tarnishes in air. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor. Neptunium is a chemical element with atomic number 93 which means there are 93 protons and 93 electrons in the atomic structure. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. (1969), Discoverer: Scientists at Dubna, Russia (1967)/Lawrence Berkeley Laboratory (1970), Discoverer: Armbruster, Paula and Muenzenberg, Dr. Gottfried, Element Category: unknown, probably a transition metal, Discoverer: David Anderson, Ruhani Rabin, Team Updraft, Element Category: unknown, probably a post-transition metal, Discoverer: Hisinger, Wilhelm and Berzelius, Jöns Jacob/Klaproth, Martin Heinrich. In nuclear industry boron is commonly used as a neutron absorber due to the high neutron cross-section of isotope 10B. The chemical symbol for Helium is He. The chemical symbol for Einsteinium is Es. Argon is a chemical element with atomic number 18 which means there are 18 protons and 18 electrons in the atomic structure. This equilibrium also known as “samarium 149 reservoir”, since all of this promethium must undergo a decay to samarium. Rhodium is a rare, silvery-white, hard, corrosion resistant and chemically inert transition metal. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. In the periodic table, the elements are listed in order of increasing atomic number Z. Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 electrons in the atomic structure. The chemical symbol for Caesium is Cs. Lutetium is a chemical element with atomic number 71 which means there are 71 protons and 71 electrons in the atomic structure. A major development was the discovery that steel could be made highly resistant to corrosion and discoloration by adding metallic chromium to form stainless steel. The chemical symbol for Neon is Ne. By using ThoughtCo, you accept our, 10 Chlorine Facts (Cl or Atomic Number 17), Indium Facts: Symbol In or Atomic Number 49, Tantalum Facts (Atomic Number 73 and Element Symbol Ta), Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College, Chlorine leaks in containers are detected, The most common natural chlorine compound on Earth is, Chlorine is the third most abundant element in the Earth's oceans. al. Lanthanum is a chemical element with atomic number 57 which means there are 57 protons and 57 electrons in the atomic structure. The number of electrons in each element’s electron shells, particularly the outermost valence shell, is the primary factor in determining its chemical bonding behavior. The chemical symbol for Boron is B. Mercury is commonly known as quicksilver and was formerly named hydrargyrum. Sulfur is a chemical element with atomic number 16 which means there are 16 protons and 16 electrons in the atomic structure. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. Vanadium is a chemical element with atomic number 23 which means there are 23 protons and 23 electrons in the atomic structure. Indium is a post-transition metal that makes up 0.21 parts per million of the Earth’s crust. But its density pales by comparison to the densities of exotic astronomical objects such as white dwarf stars and neutron stars. A … Atomic weight of Chlorine is 35.45 u or g/mol. Actinium is a chemical element with atomic number 89 which means there are 89 protons and 89 electrons in the atomic structure. Germanium is a chemical element with atomic number 32 which means there are 32 protons and 32 electrons in the atomic structure. The chemical properties of the atom are determined by the number of protons, in fact, by number and arrangement of electrons. Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. It is a noble metal and a member of the platinum group. It explains how we use cookies (and other locally stored data technologies), how third-party cookies are used on our Website, and how you can manage your cookie options. Radon occurs naturally as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead. The chemical symbol for Chlorine is Cl . It is the second lightest halogen, after fluorine. The chemical symbol for Indium is In. Chlorine is a yellow-green gas at room temperature. It is a member of the halogen group of elements, appearing between fluorine and bromine moving down the periodic table. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. In a neutral atom there are as many electrons as protons moving about nucleus. Tellurium is chemically related to selenium and sulfur. The chemical symbol for Ruthenium is Ru. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Scandium is a silvery-white metallic d-block element, it has historically been sometimes classified as a rare-earth element, together with yttrium and the lanthanides. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. Chlorine gas is a greenish yellow. Nobelium is a chemical element with atomic number 102 which means there are 102 protons and 102 electrons in the atomic structure. Phosphorus is a chemical element with atomic number 15 which means there are 15 protons and 15 electrons in the atomic structure. At 0.099%, phosphorus is the most abundant pnictogen in the Earth’s crust. The chemical symbol for Lithium is Li. Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 electrons in the atomic structure. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Major advantage of lead shield is in its compactness due to its higher density. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. • ATOMIC NUMBER 17 (noun) The noun ATOMIC NUMBER 17 has 1 sense:. Astatine is a chemical element with atomic number 85 which means there are 85 protons and 85 electrons in the atomic structure. Atomic Mass of Chlorine. Discoverer: McMillan, Edwin M. and Abelson, Philip H. Discoverer: Glenn T. Seaborg, Joseph W. Kennedy, Edward M. McMillan, Arthur C. Wohl, Discoverer: Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso, Discoverer: Glenn T. Seaborg, Ralph A. James, Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Kenneth Street, Jr., Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Bernard G. Harvey, Gregory R. Choppin, Albert Ghiorso, Discoverer: Albert Ghiorso, Glenn T. Seaborg, Torbørn Sikkeland, John R. Walton, Discoverer: Albert Ghiorso, Torbjørn Sikkeland, Almon E. Larsh, Robert M. Latimer, Copyright 2020 Periodic Table | All Rights Reserved |. As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine. Lead is widely used as a gamma shield. Appearance: greenish-yellow, irritating gas. The chemical symbol for Gallium is Ga. Gallium has similarities to the other metals of the group, aluminium, indium, and thallium. The chemical symbol for Chlorine is Cl. is a rare earth element with a metallic silver luster. Molybdenum is a chemical element with atomic number 42 which means there are 42 protons and 42 electrons in the atomic structure. Californium is a chemical element with atomic number 98 which means there are 98 protons and 98 electrons in the atomic structure. This fact has key implications for the building up of the periodic table of elements. Caesium is a soft, silvery-gold alkali metal with a melting point of 28.5 °C, which makes it one of only five elemental metals that are liquid at or near room temperature. Chlorine 37 contains 17 protons, 17 electrons and 20 neutrons. Carbon is the 15th most abundant element in the Earth’s crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. Zirconium is widely used as a cladding for nuclear reactor fuels. The chemical symbol for Terbium is Tb. The chemical symbol for Samarium is Sm. Tellurium is a brittle, mildly toxic, rare, silver-white metalloid. In nuclear industry, especially artificial xenon 135 has a tremendous impact on the operation of a nuclear reactor. It readily forms hard, stable carbides in alloys, and for this reason most of world production of the element (about 80%) is used in steel alloys, including high-strength alloys and superalloys. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons . Find the numbers of protons, neutrons, and electrons. Caesium is a chemical element with atomic number 55 which means there are 55 protons and 55 electrons in the atomic structure. It is the heaviest essential mineral nutrient. Calcium is a chemical element with atomic number 20 which means there are 20 protons and 20 electrons in the atomic structure. Lead is a chemical element with atomic number 82 which means there are 82 protons and 82 electrons in the atomic structure. The chemical symbol for Thulium is Tm. Neodymium is a chemical element with atomic number 60 which means there are 60 protons and 60 electrons in the atomic structure. All of the alkali metals have a single valence electron in the outer electron shell, which is easily removed to create an ion with a positive charge – a cation, which combines with anions to form salts. Lawrencium is a chemical element with atomic number 103 which means there are 103 protons and 103 electrons in the atomic structure. Number of protons in Chlorine is 17. Ruthenium is a rare transition metal belonging to the platinum group of the periodic table. Iodine is the least abundant of the stable halogens, being the sixty-first most abundant element. Xenon is a colorless, dense, odorless noble gas found in the Earth’s atmosphere in trace amounts. The chemical symbol for Neptunium is Np. In fact their absorption cross-sections are the highest among all stable isotopes. Arsenic is a metalloid. Bismuth is a brittle metal with a silvery white color when freshly produced, but surface oxidation can give it a pink tinge. The chemical symbol for Cobalt is Co. Cobalt is found in the Earth’s crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. It is also the most corrosion-resistant metal, even at temperatures as high as 2000 °C. It is fairly soft and slowly tarnishes in air. Specifically, the chloride ion (Cl-) is key to metabolism. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atom—the Na+ cation. Atomic Number: 17 Atomic Mass: 35.4527 amu Melting Point:-100.98 °C (172.17 K, -149.764 °F) Boiling Point:-34.6 °C (238.55 K, -30.279997 °F) Number of Protons/Electrons: 17 Number of Neutrons: 18 Classification: Halogen Crystal Structure: Orthorhombic Density @ 293 K: 3.214 g/cm 3 Color: green Atomic Structure In nuclear industry, especially natural and artificial samarium 149 has an important impact on the operation of a nuclear reactor. Americium is a chemical element with atomic number 95 which means there are 95 protons and 95 electrons in the atomic structure. Every chlorine atom has 17 protons and 17 electrons. Palladium is a chemical element with atomic number 46 which means there are 46 protons and 46 electrons in the atomic structure. Match the atomic number 4, 8, 14, 15 and 19 with each of the following: (a) A solid non-metal of valelncy 3. asked Sep 6, 2018 in Chemistry by PriyaBharti ( 53.7k points) chemical bonding Berkelium is a chemical element with atomic number 97 which means there are 97 protons and 97 electrons in the atomic structure. Sodium is a chemical element with atomic number 11 which means there are 11 protons and 11 electrons in the atomic structure. Niobium is a soft, grey, ductile transition metal, often found in the minerals pyrochlore (the main commercial source for niobium) and columbite. The chemical symbol for Chlorine is Cl. Barium is a chemical element with atomic number 56 which means there are 56 protons and 56 electrons in the atomic structure. Carbon is a chemical element with atomic number 6 which means there are 6 protons and 6 electrons in the atomic structure. Cadmium is a soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Pure germanium is a semiconductor with an appearance similar to elemental silicon. The chemical symbol for Zinc is Zn. The chemical symbol for Praseodymium is Pr. The chemical symbol for Promethium is Pm. Gadolinium is a chemical element with atomic number 64 which means there are 64 protons and 64 electrons in the atomic structure. Visit BYJUS to learn more about it. Properties: Chlorine has a melting point of -100.98°C, boiling point of -34.6°C, density of 3.214 g/l, specific gravity of 1.56 (-33.6°C), with a valence of 1, 3, 5, or 7. The chemical symbol for Americium is Am. Mercury is a chemical element with atomic number 80 which means there are 80 protons and 80 electrons in the atomic structure. Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth. Atomic Mass of Oxygen. Synonyms for atomic number 17 in Free Thesaurus. Terbium is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). The chemical symbol for Neodymium is Nd. Antonyms for atomic number 17. Praseodymium is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical properties. The chemical symbol for Calcium is Ca. The ordering of the electrons in the ground state of multielectron atoms, starts with the lowest energy state (ground state) and moves progressively from there up the energy scale until each of the atom’s electrons has been assigned a unique set of quantum numbers. Chlorine much like other Halogens has antiseptic properties. Lutetium is a silvery white metal, which resists corrosion in dry air, but not in moist air. Calculate atomic number, atomic mass, and charge by using mathematical expressions (4-6): Z = 16 The chemical symbol for Krypton is Kr. Often, the resulting number contains a decimal. The chemical symbol for Tin is Sn. The chemical symbol for Fluorine is F. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Cerium is a chemical element with atomic number 58 which means there are 58 protons and 58 electrons in the atomic structure. overall. The chemical symbol for Scandium is Sc. Molybdenum a silvery metal with a gray cast, has the sixth-highest melting point of any element. It is a non metal with the symbol Cl. Lead is a heavy metal that is denser than most common materials. If you want to get in touch with us, please do not hesitate to contact us via e-mail: Discoverer: Ramsey, Sir William and Cleve, Per Teodor. 2 synonyms for atomic number 17: chlorine, Cl. Iron is a chemical element with atomic number 26 which means there are 26 protons and 26 electrons in the atomic structure. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily unreactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. Bromine is a chemical element with atomic number 35 which means there are 35 protons and 35 electrons in the atomic structure. Chlorine is a chemical element with atomic number 17 and element symbol Cl. Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. The chemical symbol for Platinum is Pt. The Cookies Statement is part of our Privacy Policy. An atom has mass number 37 and atomic number 17. Francium is the second-least electronegative element, behind only caesium, and is the second rarest naturally occurring element (after astatine). Find the number of protons. It is a lanthanide, a rare earth element, originally found in the gadolinite mine in Ytterby in Sweden. Krypton is a member of group 18 (noble gases) elements. Bismuth is a chemical element with atomic number 83 which means there are 83 protons and 83 electrons in the atomic structure. www.nuclear-power.net. Elemental sulfur is a bright yellow crystalline solid at room temperature. The chemical symbol for Radium is Ra. When we write the configuration we'll put all 17 electrons in orbitals around the nucleus of the Chlorine atom. The chemical symbol for Lawrencium is Lr. Every adventure world contain 20 groups and every group includes 5 exclusive puzzles. Like other halogens, it is an extremely reactive element and strong oxidizer. Astatine is the rarest naturally occurring element on the Earth’s crust. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. Very soft and malleable, indium has a melting point higher than sodium and gallium, but lower than lithium and tin. Iridium is a very hard, brittle, silvery-white transition metal of the platinum group, iridium is generally credited with being the second densest element (after osmium). The chemical symbol for Europium is Eu. We've found 168 lyrics, 31 artists, and 48 albums matching atomic number 17.. Strontium is a chemical element with atomic number 38 which means there are 38 protons and 38 electrons in the atomic structure. Because of its high chemical reactivity, barium is never found in nature as a free element. Possible Solution: CHLORINE. Like … The chemical symbol for Ytterbium is Yb. Predict its (a) valency, (b) formula of halide, (c) type of ion formed, asked May 12 in Atomic Theory, Periodic Classification, and Properties of Elements by Annu01 ( 49.5k points) Discovery: Carl Wilhelm Scheele 1774 (Sweden), Word Origin: Greek: khloros: greenish-yellow. The chemical symbol for Thorium is Th. Niobium is a chemical element with atomic number 41 which means there are 41 protons and 41 electrons in the atomic structure. The chemical symbol for Actinium is Ac. Chlorine (Cl, atomic number 17) is a halogen element, poisonous greenish-yellow gas. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. These have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. 1. a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water) The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. greenish-yellow gas. Osmium is a chemical element with atomic number 76 which means there are 76 protons and 76 electrons in the atomic structure. The chemical symbol for Gold is Au. The chemical symbol for Holmium is Ho. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. 17. Name: Chlorine: Symbol: Cl Atomic Number: 17: Atomic Mass: 35.453 atomic mass units: Number of Protons: 17: Number of Neutrons: 18: Number of Electrons: 17: Melting Point What are synonyms for atomic number 17? Thallium is a chemical element with atomic number 81 which means there are 81 protons and 81 electrons in the atomic structure. Oxygen is a chemical element with atomic number 8 which means there are 8 protons and 8 electrons in the atomic structure.The chemical symbol for Oxygen is O. E. Discoverer: De Marignac, Charles Galissard, Discoverer: De Marignac, Jean Charles Galissard, Discoverer: Göhring, Otto and Fajans, Kasimir. Thorium is moderately hard, malleable, and has a high melting point. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. Helium is a chemical element with atomic number 2 which means there are 2 protons and 2 electrons in the atomic structure. Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. For example, the atomic mass of chlorine (Cl) is 35.45 amu because chlorine is composed of several isotopes, some (the majority) with an atomic mass of 35 amu (17 protons and 18 neutrons) and some with an atomic mass of 37 amu (17 protons and 20 neutrons). Chlorine is used in the production of textiles, paper products, dyes, petroleum products, medicines, insecticides, disinfectants, foods, solvents, plastics, paints, and many other products. Boron is a chemical element with atomic number 5 which means there are 5 protons and 5 electrons in the atomic structure. In the periodic table, potassium is one of the alkali metals. Hafnium’s large neutron capture cross-section makes it a good material for neutron absorption in control rods in nuclear power plants, but at the same time requires that it be removed from the neutron-transparent corrosion-resistant zirconium alloys used in nuclear reactors. Ytterbium is a chemical element with atomic number 70 which means there are 70 protons and 70 electrons in the atomic structure. The chemical symbol for Barium is Ba. Pure radium is silvery-white alkaline earth metal. Cerium is a soft, ductile and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a knife. Atomic number group 17 elements list. Californium is an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass of all the elements that have been produced in amounts large enough to see with the unaided eye (after einsteinium). The chemical symbol for Mercury is Hg. The chemical symbol for Plutonium is Pu. The nucleus is composed of protons and neutrons. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. In order to write the Chlorine electron configuration we first need to know the number of electrons for the Cl atom (there are 17 electrons). Arsenic is a chemical element with atomic number 33 which means there are 33 protons and 33 electrons in the atomic structure. The chemical symbol for Iodine is I. Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a violet gas. and Gay-Lussac, L.-J. The number of neutrons can be calculated by subracting the atomic number of Chlorine 17 by the mass number 35. Technetium is a chemical element with atomic number 43 which means there are 43 protons and 43 electrons in the atomic structure. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Cadmium is a chemical element with atomic number 48 which means there are 48 protons and 48 electrons in the atomic structure. Because of its closed-shell electron configuration, its density and melting and boiling points differ significantly from those of most other lanthanides. The atomic number of an element is the same as the number of protons in the atom. The chemical symbol for Sulfur is S. Sulfur is abundant, multivalent, and nonmetallic. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. 1 - st. letter C. 2 - st. letter H. 3 - st. letter L. 4 - st. letter O. Calcium is an alkaline earth metal, it is a reactive pale yellow metal that forms a dark oxide-nitride layer when exposed to air. The chemical symbol for Iron is Fe. It is one of the least reactive chemical elements and is solid under standard conditions. Europium is one of the least abundant elements in the universe. The element is used to manufacture chlorates, carbon tetrachloride, chloroform, and in the extraction of bromine. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) stabilizes the free metal somewhat against further oxidation. 2) You may not distribute or commercially exploit the content, especially on another website. Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure. The atomic number is the number of protons in the nucleus of an atom. A freshly exposed surface of pure copper has a reddish-orange color. Atomic Number 17 is belong to element of Chlorine.. Chemical symbol for Chlorine is Cl. Promethium is a chemical element with atomic number 61 which means there are 61 protons and 61 electrons in the atomic structure. The chemical symbol for Xenon is Xe. Rhenium is a chemical element with atomic number 75 which means there are 75 protons and 75 electrons in the atomic structure. Titanium can be used in surface condensers. A few breaths at a concentration of 1000 ppm is usually fatal. Which elements have group number of 17? The chemical symbol for Magnesium is Mg. Magnesium is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (group 2, or alkaline earth metals) of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure. Nickel is a silvery-white lustrous metal with a slight golden tinge. The chemical symbol for Yttrium is Y. Yttrium is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a “rare-earth element”. Discoverer: Coster, Dirk and De Hevesy, George Charles, Discoverer: Elhuyar, Juan José and Elhuyar, Fausto, Discoverer: Noddack, Walter and Berg, Otto Carl and Tacke, Ida. We use cookies to ensure that we give you the best experience on our website. See also: Atomic Number – Does it conserve in a nuclear reaction? Our Website follows all legal requirements to protect your privacy. Holmium is a relatively soft and malleable silvery-white metal. It is the heaviest element that can be formed by neutron bombardment of lighter elements, and hence the last element that can be prepared in macroscopic quantities. Selenium is a chemical element with atomic number 34 which means there are 34 protons and 34 electrons in the atomic structure. The chemical symbol for Francium is Fr. Too much chloride leads to hyperchloremia. Although neodymium is classed as a rare earth, it is a fairly common element. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust. 20. Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. The chemical symbol for Molybdenum is Mo. Fermium is a chemical element with atomic number 100 which means there are 100 protons and 100 electrons in the atomic structure. The chemical symbol for Bromine is Br. There are over 100 different borate minerals, but the most common are: borax, kernite, ulexite etc. The chemical symbol for Fermium is Fm. Argon is the third-most abundant gas in the Earth’s atmosphere, at 0.934% (9340 ppmv). Antimony is a lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. Bismuth is a pentavalent post-transition metal and one of the pnictogens, chemically resembles its lighter homologs arsenic and antimony. The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis. Neon is a chemical element with atomic number 10 which means there are 10 protons and 10 electrons in the atomic structure. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. The bulk properties of astatine are not known with any certainty. Too little chloride produces hypochloremia. The chemical symbol for Vanadium is V. Vanadium is a hard, silvery grey, ductile, and malleable transition metal. Atomic mass of Chlorine is 35.453 u.. If you are stuck at any of those puzzle, then you are here on the right place. The information contained in this website is for general information purposes only. The chemical symbol for Antimony is Sb. Sodium is a soft, silvery-white, highly reactive metal. Nickel belongs to the transition metals and is hard and ductile. This is a list of the 118 chemical elements which have been identified as of 2020. Krypton is a chemical element with atomic number 36 which means there are 36 protons and 36 electrons in the atomic structure. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. Its abundance in rocky planets like Earth is due to its abundant production by fusion in high-mass stars. Discoverer: Davy, Sir H. and Thénard, L.-J. The chemical symbol for Beryllium is Be. Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. Osmium is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. Number of protons + number of electrons. Europium is a chemical element with atomic number 63 which means there are 63 protons and 63 electrons in the atomic structure. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. It has the atomic number 17 in the periodic table and belongs in Group 17, the Halogens. The atomic number of ‘X’ is 17. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. Actinium is a soft, silvery-white radioactive metal. Tin is a post-transition metal in group 14 of the periodic table. The chemical symbol for Carbon is C. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. Silver is a soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Gadolinium belongs to a rare earth elements (it is one of a set of seventeen chemical elements in the periodic table). Chromium is a chemical element with atomic number 24 which means there are 24 protons and 24 electrons in the atomic structure. She has taught science courses at the high school, college, and graduate levels. The chemical symbol for Dysprosium is Dy. Despite its high price and rarity, thulium is used as the radiation source in portable X-ray devices. The chemical symbol for Radon is Rn. The chemical symbol for Tungsten is W. Tungsten is a rare metal found naturally on Earth almost exclusively in chemical compounds. Technetium is the lightest element whose isotopes are all radioactive; none are stable. Hypochloremia can lead to cerebral dehydration. The chemical symbol for Mendelevium is Md. Discoverer: Priestley, Joseph and Scheele, Carl Wilhelm, Discoverer: Ramsay, William and Travers, Morris, Discoverer: Ramsay, Sir William and Strutt, John (Lord Rayleigh), Discoverer: Del Rio, Andrés Manuel (1801) and Sefström, Nils Gabriel (1830), Discoverer: Lecoq de Boisbaudran, Paul-Émile, Discoverer: Ramsay, Sir William and Travers, Morris, Discoverer: Bunsen, Robert Wilhelm and Kirchhoff, Gustav Robert, Discoverer: Perrier, Carlo and Segrè, Emilio, Discoverer: Reich, Ferdinand and Richter, Hieronymus, Discoverer: Müller von Reichenstein, Franz Joseph, Discoverer: Ramsay, William and Travers, Morris William, Discoverer: Kirchhoff, Gustav and Bunsen, Robert. Hyperchloremia affects oxygen transport in the body. The chemical symbol for Rhodium is Rh. The chemical symbol for Zirconium is Zr. The chemical symbol for Astatine is At. It is also sometimes considered the first element of the 6th-period transition metals and is traditionally counted among the rare earth elements. The chemical symbol for Protactinium is Pa. Protactinium is a dense, silvery-gray metal which readily reacts with oxygen, water vapor and inorganic acids. Dysprosium is used for its high thermal neutron absorption cross-section in making control rods in nuclear reactors, for its high magnetic susceptibility in data storage applications. Zirconium is a chemical element with atomic number 40 which means there are 40 protons and 40 electrons in the atomic structure. These condensers use tubes that are usually made of stainless steel, copper alloys, or titanium depending on several selection criteria (such as thermal conductivity or corrosion resistance). The chemical symbol for Rhenium is Re. Tin is a chemical element with atomic number 50 which means there are 50 protons and 50 electrons in the atomic structure. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. Thorium is a chemical element with atomic number 90 which means there are 90 protons and 90 electrons in the atomic structure. It is the fourth most common element in the Earth’s crust. Chlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure.The chemical symbol for Chlorine is Cl. Gold is a chemical element with atomic number 79 which means there are 79 protons and 79 electrons in the atomic structure. The chemical symbol for Erbium is Er. The term nuclide is not synonymous with isotope, which is any member of a set of nuclides having the same atomic number but differing mass number. You can do so by clicking the link here 7 Little Words April 17 2019. Curium is a chemical element with atomic number 96 which means there are 96 protons and 96 electrons in the atomic structure. Lithium is a chemical element with atomic number 3 which means there are 3 protons and 3 electrons in the atomic structure. Lead is soft and malleable, and has a relatively low melting point. The chemical symbol for Thallium is Tl. Thulium is a chemical element with atomic number 69 which means there are 69 protons and 69 electrons in the atomic structure. The chemical symbol for Manganese is Mn. Iron is a metal in the first transition series. It is most frequently found as chloride, as in sodium chloride, another name for your everyday table salt.