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Samarium (Sm)
Atomic number: 62 · Category: lanthanide · Group 3 · Period 6 · Phase: Solid
Samarium is a chemical element with symbol Sm and atomic number 62. It is a moderately hard silvery metal that readily oxidizes in air. Being a typical member of the lanthanide series, samarium usually assumes the oxidation state +3.
Atomic mass: 150.362
Density: 7.52
Melting point: 1345 K
Boiling point: 2173 K
Appearance: silvery white
Source: Wikipedia
Block: f
Molar heat: 29.54
CPK color:#8fffc7
Electronic structure
Electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f6
Configuration (semantic): [Xe] 4f6 6s2
Shells: 2, 8, 18, 24, 8, 2
Electronegativity (Pauling): 1.17
Electron affinity: 15.63
Ionization energies: 544.5, 1070, 2260, 3990
Periodic position
Group: 3
Period: 6
xpos: 8
ypos: 9
Spectral/Bohr images
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3D Model