Name       : Einsteinium
Symbol     : En
Atomic #   : 99
Atom weight: 252 (Most stable isotope)
Melting P. : 
Boiling P. : 
Oxidation  : +2, +3
Pronounced : ine-STINE-i-em
From       : Named in honor of Albert Einstein
Identified : Albert Ghiorso and others in 1952 (see previous element)
Appearance : Radioactive, synthetic metal
Note       : An actinide metal in Group IIIA and in the bottom row of
             the periodic table.
             
[Properties]

  Einsteinium has isotopes with atomic weights between 243 and 258.