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HOME > Protocols > Reference Material > Periodic Table > Thulium

Thulium

Atomic Number: 69

Name: Thulium

Atomic symbol: Tm

Atomic Weight: 168.934

Electron configuration: 1s22s22p63s23p63d104s24p64d105s25p64f136s2

Melting Point: 1545oC

Boiling Point: 1727oC

Density: 9.3 g/cm3

Ionic radius: 0.87 angstroms (+3)

Metallic radius: 1.75 angstroms

Previous: Atomic Number 68 - Erbium


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