87
Fr
Francium
Series: Alkali metal
Mass: 223.0197 g·mol−1 (mass of most stable isotope)
Discovered: 1939
Melting Point: 26.85 C (300 K)
Boiling Point: 676.85 C (950 K)
View pictures of Francium at the Wooden Periodic Table.
Read about Francium on Wikipedia.

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

Sat Sep 12 17:41:34 2015