Category
actinide
State at Room Temperature
solid
Electron Configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d¹
Valence Electrons
2
Lewis Dot:••
Electronegativity
1.3
Pauling scale
Oxidation States
+3
Melting Point
1900 K
1626.85°C
Position in Table
Group Period 7d-block
Discovery
Historical Information
Discovered byAlbert Ghiorso, Torbjørn Sikkeland, Almon E. Larsh, Robert M. Latimer
Year1961
Common Uses
Applications & Industries
Research in nuclear chemistry
Related Elements
Same group or period
Related Calculators
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