Zinc vs Gallium

Side-by-side comparison of Zinc (Zn, element 30) and Gallium (Ga, element 31) by atomic structure and physical properties.

← Back to Periodic Table
PropertyZn Zinc Ga Gallium
Atomic number3031
SymbolZnGa
NameZincGallium
Categorytransition-metalpost-transition-metal
Standard Atomic Weight65.38 u69.723 u
Period44
Group1213
Blockdp
Phase at STPSolidSolid
Electron configuration[Ar]3d104s2[Ar]3d104s24p1
Oxidation states[-2, 0, 1, 2][-5, -4, -3, -2, -1, 0, 1, 2, 3]
Electronegativity (Pauling)1.651.81
Electron affinity-0.6 eV0.3 eV
Density7134 kg/m³5910 kg/m³
Melting point419.53 °C29.76 °C
Boiling point906.85 °C2203.85 °C
Discovery year17461875

Key Differences

PropertyZn ZincGa Gallium
Standard Atomic Weight65.38 u ↓ lower69.723 u ↑ higher
Density7134 kg/m³ ↑ higher5910 kg/m³ ↓ lower
Melting point419.53 °C ↑ higher29.76 °C ↓ lower
Boiling point906.85 °C ↓ lower2203.85 °C ↑ higher
Electronegativity (Pauling)1.65 ↓ lower1.81 ↑ higher
Electron affinity-0.6 eV ↓ lower0.3 eV ↑ higher
Group12 13
Blockd p
Categorytransition-metal post-transition-metal
Electron configuration[Ar]3d104s2 [Ar]3d104s24p1
Discovery year1746 1875