Ga
Gallium Symbol (Ga)
Gallium is element 31 of the periodic table. Copy its symbol Ga and see its atomic weight, electron configuration and common compounds.
What does Ga mean?
Ga is the chemical symbol for gallium, element number 31 in the periodic table. Gallium is a post-transition metal in group 13, period 4. It is a metal that melts at about 30 °C, so it can melt in your hand; gallium nitride is used in LEDs.
Codes and properties
| Chemical symbol | Ga |
|---|---|
| Atomic number (Z) | 31 |
| Atomic weight (PubChem) | 69.723 |
| Group / period | 13 / 4 |
| Element category | post-transition metal |
| Electron configuration | [Ar]4s² 3d¹⁰ 4p¹ |
| State at 20 °C | Solid |
| Oxidation states | +3 |
| Electronegativity (Pauling) | 1.81 |
| Melting point | 302.91 K (29.76 °C) |
| Boiling point | 2477 K (2203.85 °C) |
| Density | 5.91 g/cm³ |
| Discovered | 1875 |
| Common compounds | GaAs, GaN |
How to type Ga
- Plain text: type
Ga— element symbols are ordinary Latin letters, with the first letter capitalised and the second lowercase. - Subscripts in formulas: use Unicode subscript digits (₀₁₂₃₄₅₆₇₈₉) for formulas such as GaAs — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{Ga}in math mode, or use the mhchem package:\ce{Ga}. - HTML:
Ga; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for gallium?
The chemical symbol for gallium is Ga.
What is the atomic number of gallium?
Gallium has atomic number 31, meaning each atom has 31 protons.
What is the electron configuration of gallium?
The ground-state electron configuration of gallium is [Ar]4s² 3d¹⁰ 4p¹.
Related symbols
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Reference: Gallium on PubChem (NIH)