Samarium

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Samarium
Sm
In situ availability:
Necessity:
Atomic number: 62
Atomic mass: 150.36
group: 19
period: N/A
normal phase: Solid
series: Lanthanide
density: 7.52 g/cm3
melting point: 1345K,
1072°C,
1962°F
boiling point: 2067K,
1794°C,
3261°F
SrYZr
Pm ← Sm → Eu
NpPuAm
Atomic radius (pm): 185
Bohr radius (pm): 238
Covalent radius (pm):
Van der Waals radius (pm):
ionic radius (pm): (+3)108
1st ion potential (eV): 5.64
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10 4f6
5s2 5p6
6s2
Electrons Per Shell
2, 8, 18, 24, 8, 2
Electronegativity: 1.17
Electron Affinity: -
Oxidation states: 3, 2
Magnetism: Antiferromagnetic
Crystal structure: Rhombohedral

Samarium is a Lanthanide metal. It has a Rhombohedral crystalline structure. This element has 4 stable isotopes: 144, 150, 152, and 154.




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