Category
lanthanide
State at Room Temperature
solid
Electron Configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f⁵
Valence Electrons
2
Lewis Dot:••
Electronegativity
1.13
Pauling scale
Oxidation States
+3
Melting Point
1315 K
1041.85°C
Boiling Point
3273 K
2999.85°C
Density
7.26
g/cm³
Position in Table
Group Period 6f-block
Discovery
Historical Information
Discovered byJacob A. Marinsky, Lawrence E. Glendenin
Year1945
Common Uses
Applications & Industries
Atomic batteries, luminous paint, thickness gauges
Related Elements
Same group or period
Related Calculators
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