Atomic Number (# of protons)

35

Mass (amu)

79.90

Density

3.12 g/cm³ (20⁰C, 1 atm)

Electron Configuration

[Ar]3d¹⁰4s²p⁵

Oxidation States (bold = most stable)

+1,-1,+5

Atomic Radius (pm)

114

Ionic Radius (pm)

(-1)196

Electronegativity

2.7

Melting Point (⁰C, 1 atm)

-7

Electron Affinity (eV)

3.36

Boiling Point(⁰C, 1 atm)

59

1^st Ionization energy (eV)

11.81

Enthalpy of Fusion (kJ/mole)

5.29

2^nd Ionization Energy (eV)

Enthalpy of Vaporization (kJ/mole)

15.46

3^rd Ionization Energy (eV)

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

0.27