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Sm
in WebElements
in X-Ray info
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Sm, 62
samarium (English)
samarium, m. (French)
Samarium, n. (German)
samarij (Russian)
samarium (Swedish)
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| Symbol, number | Sm, 62 (metal) |
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| Weight | 150.36 |
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| In Nature | |
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| Discovered | 1879, by P.-E. Lecoq de Boisbaudran (France) |
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| Density [kg/m3] | 7520 [293 K] (solid) |
| Molar volume | 20.00 cm3 |
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| Melting Temperature | 1350 K (1077 °C) Enthalpy: 191.6 kJ/mol |
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| Boiling Temperature | 2064 K (1791 °C) Enthalpy: 10.9 kJ/mol |
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| Electrical resistance | 94.0E-8 [298 K] Wm |
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| Thermal | Conductivity: 13.3 [300 K] W/Km Expansion: 10.4E-6 /K |
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| Ionisation [kJ/mol] |
| M--> |
M+--> |
M2+--> |
M3+--> |
M4+--> |
M5+--> |
M6+--> |
M7+--> |
M8+--> |
M9+-->M10+ |
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| Thermodynamics |
| State |
DfH° |
DfG° |
S° |
CpH |
H°298.15-H°0 |
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[J/Kmol] |
[kJ/mol] |
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| Isotopes |
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Mass |
In nature |
Half-life |
Spin |
m/mN |
NMM |
Decay |
| Sm |
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