|
|
 |
| |
| name |
Actinium |
| latin |
Actinium |
| french |
Actinium |
| german |
Actinium |
| symbol |
Ac |
| proton number |
89 |
| atomic weight |
227.0278 |
| Pauling electronegativity |
1.1 |
| electronic configuration |
[Rn] 6d17s2
>> show long |
| melting point |
1323 K, 1050°C, 1922°F |
| boiling point |
3573 K, 3300°C, 5972°F |
| group |
3 |
| period |
7 |
| state (by 20°C) |
solid |
| oxidation states |
+3 |
|
printable version
discussion board
(0)
|
Discoverer
| Year of discovery |
Discoverer |
| 1899 |
Andre Debierne |
>> show more
|
|
Czech version