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VISUAL CHEMISTRY

FRANCIUM

PROPERTIES
Relative atomic mass (223)
Atomic mass (kg) 370x10-27
Density (g/cm3) unknown
Physical State at STP Solid
Melting point (°C) 27
Boiling point (°C) 677
Crystal Structure of solid element Body centred cubic
Radioactive isotopes (4) 223Fr
Half life 21.8 minutes

STP = standard temperature and pressure. Usually considered as room temperature and pressure.

 
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