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General

• Element Identification Timeline

Relative atomic mass (210) Atomic mass (kg) 350x10-27 Density (g/cm3) unknown Physical State at STP Solid Melting point (°C) 302 Boiling point (°C) 337 Crystal Structure of solid element unknown Radioactive isotopes (7) 210At Half life 8.3 hours

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