The Elements - Periodic Table
Isotopes In October 1971, it was announced that two new isotopes of element 105 were synthesized with the heavy ion linear accel ...
Sg Seaborgium Proposed Name Atomic Number: 106 Atomic Symbol: Sg Atomic Weight: 263 Electron Configuration:[Rn]7s^2 5f^14 6d^4 H ...
Nobelium Atomic Number: 102 Atomic Symbol: No Atomic Weight: 259 Electron Configuration:[Rn]7s^2 5f^14 History (Alfred Nobel, di ...
Last Updated: 12/19/97, CST Information Services Team Nobelium ...
Bh Bohrium Formally known as Ns Nielsbohrium Proposed Name Atomic Number: 107 Atomic Symbol: Atomic Weight: 262 Electron Configu ...
Hassium Proposed Name Atomic Number: 108 Atomic Symbol: Hs Atomic Weight: 265 Electron Configuration:[Rn]7s^2 5f^14 6d^6 History ...
Meitnerium Proposed Name Atomic Number: 109 Atomic Symbol: Mt Atomic Weight: 265 Electron Configuration:[Rn]7s^2 5f^14 6d^7 Hist ...
Element 110 Unnamed Atomic Number: 110 Atomic Symbol: Atomic Weight: Electron Configuration: Press Release:Discovery of Element ...
Element 111 Atomic Number: 111 Atomic Symbol: Atomic Weight: Electron Configuration: History Discovered by Gesellschaft Schwerio ...
Element 112 Atomic Number: 112 Atomic Symbol: Atomic Weight: 277 Electron Configuration: History February 9, 1996 at 10:37 pm, a ...
Information on elements 114, 116, and 118 is not yet available. These elements have, however, been produced and can exist. Expec ...
Cerium For lighter flints. Atomic Number: 58 Atomic Symbol: Ce Atomic Weight: 140.12 Electron Configuration:[Xe]6s^2 4f^1 5d^1 H ...
Cerium is an iron-gray lustrous metal. It is malleable, and oxidizes very readily at room temperature, especially in moist air. ...
Thorium For crucibles. Atomic Number: 90 Atomic Symbol: Th Atomic Weight: 232.0381 Electron Configuration:[Rn]7s^2 6d^2 History ...
reduction of thorium tetrachloride with an alkali metal. Thorium was originally assigned a position in Group IV of the periodic ...
Cost Thorium metal (99.9%) costs about $150/oz. Sources: CRC Handbook of Chemistry and Physics and the American Chemical Society ...
Europium For color TV tubes. Atomic Number: 63 Atomic Symbol: Eu Atomic Weight: 151.96 Electron Configuration:[Xe]6s^2 4f^7 Hist ...
Uses Europium oxide is now widely used as a phospor activator and europium-activated yttrium vanadate is in commercial use as th ...
Praseodymium For ceramic coloring. Atomic Number: 59 Atomic Symbol: Pr Atomic Weight: 140.9077 Electron Configuration:[Xe]6s^2 4 ...
Properties Praseodymium is soft, silvery, malleable, and ductile. It is somewhat more resistant to corrosion in air than europiu ...
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