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