Atomic Number (# of protons)

23

Mass (amu)

50.94

Density

6.11 g/cm³ (20⁰C, 1 atm)

Electron Configuration

[Ar]3d³4s²

Oxidation States (bold = most stable)

+5,3

Atomic Radius (pm)

145

Ionic Radius (pm)

(+4)61

Electronegativity

1.8

Melting Point (⁰C, 1 atm)

1910

Electron Affinity (eV)

0.53

Boiling Point(⁰C, 1 atm)

3409

1^st Ionization energy (eV)

6.75

Enthalpy of Fusion (kJ/mole)

17.57

2^nd Ionization Energy (eV)

Enthalpy of Vaporization (kJ/mole)

458.6

3^rd Ionization Energy (eV)

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

0.49