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Francium

The heaviest alkali metal with no stable isotopes.


Symbol
Fr

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Atomic number 87 Clip
Atomic / Molecular Weight 223.0197 gmol-1Clip
Melting Point 303 KClip
Boiling Point 923 KClip
Specific heat capacity 140 Jkg-1K-1Clip
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See also: Periodic Table.

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