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Mo
in WebElements
in X-Ray info
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Mo, 42
molybdenum (English)
molybdène, m. (French)
Molybdän, n. (German)
molibden (Russian)
molybden (Swedish)
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| Symbol, number | Mo, 42 (metal), Group: 6; 6B |
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| Weight | 95.94 |
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| In Nature | |
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| Discovered | 1781, by P.J. Hjelm (Sweden) |
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| Density [kg/m3] | 10220 [293 K] (solid) 9330 [2890 K] (liquid) |
| Molar volume | 9.39 cm3 |
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| Melting Temperature | 2890 K (2617 °C) Enthalpy: 594.1 kJ/mol |
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| Boiling Temperature | 4885 K (4612 °C) Enthalpy: 27.6 kJ/mol |
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| Electrical resistance | 5.2E-8 [273 K] Wm |
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| Thermal | Conductivity: 138 [300 K] W/Km Expansion: 5.43E-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 |
| Mo |
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