31
69.723 u
Ga
Gallium
Post Transition Metal
Atomic Structure
Physical State
Group
13
Period
4
Block
p
Electron Configuration
[Ar] 3d¹⁰ 4s² 4p¹
Physical Properties
Atomic Mass:
69.723 u
Electronegativity:
1.81
Atomic Radius:
187 pm
Ionization Energy:
5.999 eV
Density:
5.907 g/cm³
Melting Point:
302.9146 K
Boiling Point:
2673 K
Historical Information
Discovered By:
Lecoq de Boisbaudran
Year Discovered:
1875