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Be
in WebElements
in X-Ray info
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Be, 4
beryllium (English)
béryllium, m. (French)
Beryllium, n. (German)
berillij (Russian)
berilia (Spanish)
beryllium (Swedish)
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| Symbol, number | Be, 4 (alkaline earth metal), Group: 2; 2A |
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| Weight | 9.01218 |
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| In Nature | |
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| Discovered | 1828, by Friedrich Wöhler and Antoine Bussy (Germany, France) |
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| Density [kg/m3] | 1847.7 [293 K] (solid) |
| Molar volume | 4.88 cm3 |
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| Melting Temperature | 1551 K (1278 °C) Enthalpy: 308.8 kJ/mol |
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| Boiling Temperature | 3243 K (2970 °C) Enthalpy: 9.80 kJ/mol |
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| Electrical resistance | 4.0E-8 [293 K] Wm |
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| Thermal | Conductivity: 200 [300 K] W/Km Expansion: 11.5E-6 /K |
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| Configuration | 1s2 2s2p1 |
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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 |
| Be |
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