Symbol	Es	Atomic radius: pm	-	Fusion: kJ/Mole	-
Name	Einsteinium	Ionic radius: pm	-	Boiling point: °C	-
Atomic number	99	Electron affinity	-	Melting point: °C	860
Atomic weight	252.0	1st  ion potential	6.42	Specific Heat Cap: J/(g K)	-
Classification	Trans metal	Natural form	Solid	Thermal Cond: W/(cm K)	-
Configuration	[Rn]5f117s2	Crystal structure	Hex	Electrical Cond	-
Oxidation states	3	Density	-	Abundance: mg/kg-crust	Synthetic
Electronegativity	-	Vaporization: kJ/Mole	133.0
Einsteinium does not occur in nature, but it was produced in 1952 by Albert Ghiorso and co-workers at Berkeley,California in debris taken from the first thermonuclear or hydrogen bomb explosion in the South Pacific in November of 1952.			Uses -  no known uses