Thulium

Element information

Atomic properties

Mass: 168.93422 u

Electron configuration: [Xe]6s2 4f13

Oxidation states: +3

Electronegativity: 1.25

Physical properties

Density: 9.32 g/cm³

Standard state: solid

Melting point: 1818 K

Boiling point: 2223 K

₆₉Tm

Part of the Periodic Table 2 collection

Other artworks