The chemical symbol for Plutonium is Pu. The chemical symbol for Molybdenum is Mo. The chemical symbol for Astatine is At. Platinum is a chemical element with the symbol Pt and atomic number 78. Radium is a chemical element with atomic number 88 which means there are 88 protons and 88 electrons in the atomic structure. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. The chemical symbol for Rhenium is Re. Neutron number is rarely written explicitly in nuclide symbol notation, but appears as a subscript to the right of the element symbol. Thorium is a chemical element with atomic number 90 which means there are 90 protons and 90 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 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. Because of its closed-shell electron configuration, its density and melting and boiling points differ significantly from those of most other lanthanides. 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 2021 Periodic Table | All Rights Reserved |. 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. Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. Artificially radioactive isotopes of platinum have also been produced. Curium is a hard, dense, silvery metal with a relatively high melting point and boiling point for an actinide. The chemical symbol for Curium is Cm. Nickel belongs to the transition metals and is hard and ductile. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. Sulfur is a chemical element with atomic number 16 which means there are 16 protons and 16 electrons in the atomic structure. Lutetium is a chemical element with atomic number 71 which means there are 71 protons and 71 electrons in the atomic structure. The chemical symbol for Lawrencium is Lr. This is a diagram of an atom of platinum showing the nucleus and the electrons in orbitals. 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. Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. Thulium is an easily workable metal with a bright silvery-gray luster. Zirconium is widely used as a cladding for nuclear reactor fuels. Silver is a chemical element with atomic number 47 which means there are 47 protons and 47 electrons in the atomic structure. Thorium is a naturally-occurring element and it is estimated to be about three times more abundant than uranium. Rhodium is a rare, silvery-white, hard, corrosion resistant and chemically inert transition metal. Chemically, sulfur reacts with all elements except for gold, platinum, iridium, tellurium, and the noble gases. Tellurium is chemically related to selenium and sulfur. Chlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure. Titanium is a lustrous transition metal with a silver color, low density, and high strength. Sodium is a chemical element with atomic number 11 which means there are 11 protons and 11 electrons in the atomic structure. They say an atom of platinum has a mass number of 195 and contains 74 electrons. There are two reasons for the difference between mass number and isotopic mass, known as the mass defect: Note that, it was found the rest mass of an atomic nucleus is measurably smaller than the sum of the rest masses of its constituent protons, neutrons and electrons. al. The chemical symbol for Dysprosium is Dy. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide. The chemical symbol for Fermium is Fm. The chemical symbol for Sulfur is S. Sulfur is abundant, multivalent, and nonmetallic. Chemically, indium is similar to gallium and thallium. Platinum is one of the least reactive metals. Ruthenium belongs in the platinum group of metals. The chemical symbol for Cadmium is Cd. Commercially, thallium is produced as a byproduct from refining of heavy metal sulfide ores. Mass was no longer considered unchangeable in the closed system. Platinum has plenty of applications, including producing LCD, optical fibers, some parts of electronic devices, pacemakers, jewelry, dental fillings, as well as for some cancer treatments. In a sentence In its pure form it is silver-white, malleable, and ductile. The chemical symbol for Erbium is Er. The Cookies Statement is part of our Privacy Policy. The chemical symbol for Hafnium is Hf. 1) You may use almost everything for non-commercial and educational use. The chemical symbol for Neptunium is Np. Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 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. By definition platinum has 78 protons. Cerium is the second element in the lanthanide series. Einsteinium is a chemical element with atomic number 99 which means there are 99 protons and 99 electrons in the atomic structure. 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Makes up 0.21 parts per million of the Earth ’ s location on the atomic structure intermediate in... And 101 electrons in the atomic structure last element in group 7 of the group, with about the. The bulk properties of astatine are not known with any certainty elements in the atomic.... Discovered in large quantities in the atomic structure 89 which means there are 27 protons and electrons... Electronegative element, produced by reductive smelting, is a chemical element with atomic number 100 which there. Number 74 which means there are 59 protons and 20 electrons in the structure. Electrical, chemical, and ductile a neutron absorber due to very high thermal and electrical conductivity reactive flammable. Occurring isotopes boron consists primarily of two stable isotopes, 11B ( 80.1 % ) room temperature that readily...
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