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Thallium

Details of the Chemical Element Thallium
Element NameThallium
SymbolTl
Atomic Number81
GroupMetal
Crystal StructureHexagonal
Atomic Mass204.3833
Electronic Configuration2,8,18,32,18,3
Orbital Configuration[Xe] 4f14 5d10 6s2 6p1
Valency1,3
Melting Point303.5°C
Boiling Point1457°C ±10°C
Electo-negativity2.04
Covalent Radius1.48 Å
Last updated on 12 April 2021 06:26:31
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