Zirconium
Zr
Zirconium
Transition Metal
Atomic number:
40
Atomic weight:
91.224
Shells:
2,8,18,10,2
Orbitals:
[Kr] 4d2 5s2
Melting point:
1852°C ±2°C
Boiling point:
4377°C
Covalent radius:
1.45
Å
Atomic volume:
14.1
cm³/mol
Atomic radius:
2.16
Å
Ionic radius:
.84 (+4)
Å
Electronegativity:
1.33
Oxidation states:
1st ionization pot.:
6.6339
V
2nd ionization pot.:
13.13
V
3rd ionization pot.:
22.99
V
Specific heat:
0.27
J/gK
Heat of fusion:
16.90
kJ/mol
Heat of vapor.:
58.20
kJ/mol
Thermal conduct.:
0.227
W/cmK
Electrical conduct.:
0.0236
10^6/cm ohm
Density:
6.4
g/cm³
Valence:
2,3,4
