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VISUAL CHEMISTRY

RADON

PROPERTIES
Relative atomic mass (222)
Atomic mass (kg) 370x10-27
Density (g/cm3) 4.4
Physical State at STP Monatomic gas (Rn)
Melting point (C) - 71
Boiling point (C) - 61.8
Crystal Structure of solid element Face centred cubic
Radioactive isotopes (7) 222Rn
Half life 3.82 days

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

 

 

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