gallium

| Introduction | History | Other Periodic Tables | Back |

Symbol:

Ga

Atomic Number:

31

Relative Atomic Mass:

69.723 g mol^-1

Natural Abundance in Lithosphere, hydrosphere and atmosphere:

10^-3% (mass fraction)

Electron Configuration:

[Ar]3d¹⁰4s²4p

Oxidation States:

III

Atomic Radius:

122.1pm

Covalent Radius:

125pm

Ionic Radius:

47pm (for +3 oxidation state, 4 coordinate)

62pm (for +3 oxidation state, 6 coordinate)

Melting Point:

29.8°C

Density:

5.91 g cm^-3 (at 20°C)

First Ionisation Energy:

5.999 eV

Reduction Potential:

-0.56V

for Ga³⁺ +3e^- a Ga_(s)

Electronegativity (Allred and Rochow):

1.8

Number of Natural Isotopes:

2

Mass Number of the Most Abundant Isotopes:

69 g mol^-1 a 60.1% abundance

71 g mol^-1 a 39.9% abundance