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