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name |
Arsenic |
latin |
Arsenicum |
french |
Arsenic |
german |
Arsen |
symbol |
As |
proton number |
33 |
atomic weight |
74.9216 |
Pauling electronegativity |
2.18 |
electronic configuration |
[Ar] 3d104s24p3 >> show long |
melting point |
1090 K, 817°C, 1502°F |
boiling point |
887 K, 614°C, 1137°F |
group |
15 |
period |
4 |
state (by 20°C) |
solid |
oxidation states |
-3, +3, +5 |
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Discoverer
Year of discovery |
Discoverer |
1250 |
Albertus Magnus (1200-1280) |
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