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name |
Astatine |
latin |
Astatium |
french |
Astate |
german |
Astat |
symbol |
At |
proton number |
85 |
atomic weight |
[210] |
Pauling electronegativity |
2.2 |
electronic configuration |
[Xe] 4f145d106s26p5 >> show long |
melting point |
575 K, 302°C, 575°F |
boiling point |
- |
group |
17 |
period |
6 |
state (by 20°C) |
solid |
oxidation states |
-1, +1, +3, +5, +7 |
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 printable version
 discussion board (35)
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Discoverer
Year of discovery |
Discoverers |
1940 |
Dale R. Corson K. R. Meckenzie Emilio G. Segre (1905-1989) |
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