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Relative atomic mass (98) Atomic mass (kg) 165x10-27 Density (g/cm3) 11.5 Physical State at STP Solid Melting point (°C) 2200 Boiling point (°C) 3500 Crystal Structure of solid element Close packed hexagonal Radioactive isotopes (10) 98Tc Half life 4200000 years

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