99
Es
Einsteinium
Series: Actinide
Mass: 252.0829 g·mol−1 (mass of most stable isotope)
Discovered: 1952
Melting Point: 856.85 C (1130 K)
Boiling Point: Unknown
View pictures of Einsteinium at the Wooden Periodic Table.
Read about Einsteinium on Wikipedia.

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Copyright 2008 Mark Ivey. Based on data retrieved from Wikipedia.

Sat Sep 12 17:41:35 2015