Atomic Number (# of protons)

29

Mass (amu)

63.55

Density

8.96 g/cm³ (20⁰C, 1 atm)

Electron Configuration

[Ar]3d¹⁰4s¹

Oxidation States (bold = most stable)

+2,+1

Atomic Radius (pm)

128

Ionic Radius (pm)

(+2)73

Electronegativity

1.8

Melting Point (⁰C, 1 atm)

1085

Electron Affinity (eV)

1.24

Boiling Point(⁰C, 1 atm)

2563

1^st Ionization energy (eV)

7.73

Enthalpy of Fusion (kJ/mole)

13.01

2^nd Ionization Energy (eV)

Enthalpy of Vaporization (kJ/mole)

304.6

3^rd Ionization Energy (eV)

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

0.39