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
