Saturday, December 29, 2012

Nobelium

Nobelium

General properties
Name, symbol, number nobelium, No, 102
Element category actinide
Group, period, block n/a, 7, f
Standard atomic weight (259)
Electron configuration [Rn] 5f14 7s2
2, 8, 18, 32, 31, 8, 2
History
Discovery Joint Institute for Nuclear Research (1966)

Nobelium is a synthetic element with the symbol No and atomic number 102. It was first correctly identified in 1966 by scientists at the Flerov Laboratory of Nuclear Reactions in Dubna, Soviet Union. Little is known about the element but limited chemical experiments have shown that it forms a stable divalent ion in solution as well as the predicted trivalent ion that is associated with its presence as one of the actinides.

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