85
At
Astatine
Series: Halogen
Mass: 209.9871 g·mol−1 (mass of most stable isotope)
Discovered: 1940
Melting Point: 301.85 C (575 K)
Boiling Point: 336.85 C (610 K)
View pictures of Astatine at the Wooden Periodic Table.
Read about Astatine on Wikipedia.

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

Sat Sep 12 17:41:34 2015