Atomic Number (# of protons)

46

Mass (amu)

106.4

Density

12.0 g/cm³ (20⁰C, 1 atm)

Electron Configuration

[Kr]4d¹⁰

Oxidation States (bold = most stable)

+2,+4

Atomic Radius (pm)

138

Ionic Radius (pm)

(+2)64

Electronegativity

1.4

Melting Point (⁰C, 1 atm)

1555

Electron Affinity (eV)

0.56

Boiling Point(⁰C, 1 atm)

2964

1^st Ionization energy (eV)

8.34

Enthalpy of Fusion (kJ/mole)

16.74

2^nd Ionization Energy (eV)

Enthalpy of Vaporization (kJ/mole)

376.6

3^rd Ionization Energy (eV)

Specific Heat Capacity ( J/ (g K), 25⁰C, 1 atm)

0.24