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Mn
in WebElements
in X-Ray info
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Mn, 25
manganese (English)
manganèse, m. (French)
Mangan, n. (German)
marganets (Russian)
mangan (Swedish)
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| Symbol, number | Mn, 25 (metal), Group: 7; 7B |
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| Weight | 54.93805 |
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| In Nature | |
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| Discovered | 1774, by J.G. Gahn (Sweden) |
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| Density [kg/m3] | 7440 [293 K] (solid) 6430 [1517 K] (liquid) |
| Molar volume | 7.38 cm3 |
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| Melting Temperature | 1517 K (1244 °C) Enthalpy: 219.7 kJ/mol |
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| Boiling Temperature | 2235 K (1962 °C) Enthalpy: 14.4 kJ/mol |
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| Electrical resistance | 185.0E-8 [298 K] Wm |
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| Thermal | Conductivity: 7.82 [300 K] W/Km Expansion: 22E-6 /K |
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| Configuration | 1s2 2s2p6 3s2p6d5 4s2 |
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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 |
| Mn |
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