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31 Ga Gallium Gallium

Gallium (Ga)

Post-transition Metals · Solid · Period 4 · Group 13

Element Properties

Atomic Number
31
Symbol
Ga
Atomic Mass
69.723
Standard State
Solid
Period
4
Group
13
Electronegativity
1.81
Atomic Radius
187
Ionization Energy
6
Electron Affinity
0.3
Oxidation States
+3
Melting Point
302.91 K (29.76 °C)
Boiling Point
2477 K (2203.85 °C)
Density
5.91
Electron Configuration
[Ar]4s2 3d10 4p1
Year Discovered
1875

Frequently asked questions

What is the atomic number of Gallium?

The atomic number of Gallium is 31, which equals the number of protons in its nucleus.

What is the atomic mass of Gallium?

The atomic mass of Gallium is approximately 69.723 u (one twelfth of the mass of a carbon-12 atom).

What is the electron configuration of Gallium?

The electron configuration of Gallium is [Ar]4s2 3d10 4p1.

Where is Gallium in the periodic table?

Gallium is located in period 4, group 13.

When was Gallium discovered?

Gallium was discovered in 1875.

Related elements

Same group

Same period