Astatine
| Atomic number: |
85 |
|
Atomic weight: |
(209.9871) |
|
| Shells: |
2,8,18,32,18,7 |
|
Orbitals: |
[Xe] 4f14 5d10 6s2 6p5 |
|
| Melting point: |
302°C |
|
Boiling point: |
337°C |
|
| Covalent radius: |
1.45 |
Å |
Atomic volume: |
-- |
cm³/mol |
| Atomic radius: |
1.43 |
Å |
Ionic radius: |
-- |
Å |
| Electronegativity: |
2.2 |
|
Oxidation states: |
(±1),3,5,7 |
|
| 1st ionization pot.: |
9.5 |
V |
2nd ionization pot.: |
-- |
V |
| 3rd ionization pot.: |
-- |
V |
Specific heat: |
-- |
J/gK |
| Heat of fusion: |
-- |
kJ/mol |
Heat of vapor.: |
-- |
kJ/mol |
| Thermal conduct.: |
0.017 |
W/cmK |
Electrical conduct.: |
-- |
10^6/cm ohm |
| Density: |
-- |
g/cm³ |
Valence: |
1,3,5,7 |
|
