Thallium

Element information

Atomic properties

Mass: 204.383 u

Electron configuration: [Xe]6s2 4f14 5d10 6p1

Oxidation states: +3, +1

Electronegativity: 1.62

Physical properties

Density: 11.8 g/cm3

Standard state: solid

Melting point: 577 K

Boiling point: 1746 K

81Tl

Part of the Periodic Table 2 collection

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