Einsteinium (Es) Element Properties

Atomic Mass	254
Atomic Number	99
Name Origins	Named after Albert Einstein.
Year Discovered	1952
Discovery Credits	Discovered in the debris of the 1952 thermonuclear explosion in the Pacific by G. R. Choppin, S. G. Thompson, A. Ghlorso, and B. G. Harvey.
Remarks	Radioactive, silvery metal which does not occur naturally. attacked by oxygen, steam, and acids, but not alkalis.
References	Emsley, J., 1991; THE ELEMENTS : Sec. Ed., Clarendon Press, Oxford, 251 p.
See Also	WebElements, ChemiCool