Samarium
(Redirected from Sm)
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 |
Sr ← Y → Zr | |
Pm ← Sm → Eu | |
Np ← Pu → Am | |
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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