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At
in WebElements
in X-Ray info
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At, 85
astatine (English)
astate, f. (French)
Astatin, n. (German)
astat (Russian)
astatino??? (Spanish)
astat (Swedish)
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| Symbol, number | At, 85 (semiconductor), Group: 17; 7A |
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| Weight | 210 |
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| In Nature | |
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| Discovered | 1940, by D.R. Corson, K.R. MacKenzie and E. Segrè (USA) |
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| Thermal | Conductivity: 1.7 [300 K] W/Km |
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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 |
| [kJ/mol] |
[J/Kmol] |
[kJ/mol] |
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| Isotopes |
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Mass |
In nature |
Half-life |
Spin |
m/mN |
NMM |
Decay |
| At |
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