Platinum
| Pt |
Platinum |
Transition Metal |
| Atomic number: |
78 |
|
Atomic weight: |
195.08 |
|
| Shells: |
2,8,18,32,17,1 |
|
Orbitals: |
[Xe] 4f14 5d9 6s1 |
|
| Melting point: |
1772°C |
|
Boiling point: |
3827°C |
|
| Covalent radius: |
1.30 |
Å |
Atomic volume: |
9.10 |
cm³/mol |
| Atomic radius: |
1.83 |
Å |
Ionic radius: |
.63 (+4) |
Å |
| Electronegativity: |
2.28 |
|
Oxidation states: |
2,(4) |
|
| 1st ionization pot.: |
9.0 |
V |
2nd ionization pot.: |
18.563 |
V |
| 3rd ionization pot.: |
-- |
V |
Specific heat: |
0.13 |
J/gK |
| Heat of fusion: |
19.60 |
kJ/mol |
Heat of vapor.: |
510.0 |
kJ/mol |
| Thermal conduct.: |
0.716 |
W/cmK |
Electrical conduct.: |
0.0966 |
10^6/cm ohm |
| Density: |
21.45 |
g/cm³ |
Valence: |
2,3,4 |
|
