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- 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.
-