Atomic NumberAtomic Number of Gallium
Atomic Number of Gallium is 31.
Chemical symbol for Gallium is Ga. Number of protons in Gallium is 31. Atomic weight of Gallium is 69.723 u or g/mol. Melting point of Gallium is 29,8 °C and its the boiling point is 2403 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Gallium
Gallium is a rare and very soft metal of light grey color, which resembles aluminum in some of its properties. It is a semi-conductor. This chemical element has got its name after the Latin name for France, Gallia. It is quite hard to find gallium on the surface of our planet; it can be extracted from some types of coal and bauxites, but in quite small doses. Gallium has no biologic importance and is non-toxic. It makes alloys with many other metals, and these alloys can be used for some parts for mobile phones, light emitting diodes, pressure sensors, etc.
Uses of Gallium
Gallium, a silvery-white and soft metallic element with the symbol Ga, is mainly used in electronics. Most of the gallium produced in the world are employed to make Gallium arsenide. Gallium can be used in pharmaceuticals, radiopharmaceuticals, and medicine too. Gallium compounds are used in rectifiers, transistors, solar panels, mobile phones, and optoelectronic nanosystems. Gallium arsenide, a compound of gallium and arsenic with the formula GaAs, is used as a semiconductor and employed to manufacture LED TVs, lasers, microwave integrated circuits, solar cells, etc. Gallium nitride, an alloy of gallium and nitrogen with the formula GaN, is also used as a semiconductor. It is employed in mobile phones, Blu-ray technology, LEDs, etc.
Compounds with Gallium
- Ga2O: Gallium(I) oxide
- GaS: Gallium Sulfide
- GaSe: Gallium Selenide
- GaTe: Gallium(II) telluride
- Ga(OH)3: Gallium(III) hydroxide
- GaAs: Gallium arsenide
- GaN: Gallium nitride
- AlGaAs: Aluminium gallium arsenide
- GaP: Gallium phosphide
- GaSb: Gallium antimonide
- InGaAs: Indium gallium arsenide
- GaAsP: Gallium arsenide phosphide
- AlGaN: Aluminium gallium nitride
- InGaN: Indium gallium nitride
Properties of Gallium Element
| Atomic Number (Z) | 31 |
|---|---|
| Atomic Symbol | Ga |
| Group | 13 |
| Period | 4 |
| Atomic Weight | 69.723 u |
| Density | 5.907 g/cm3 |
| Melting Point (K) | 302.9146 K |
| Melting Point (℃) | 29,8 °C |
| Boiling Point (K) | 2673 K |
| Boiling Point (℃) | 2403 °C |
| Heat Capacity | 0.371 J/g · K |
| Abundance | 19 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Metal |
| Electronegativity (Pauling) χ | 1.81 |
| Ionization Energy (eV) | 5.9993 |
| Atomic Radius | 130pm |
| Covalent Radius | 126pm |
| Van der Waals Radius | 187 |
| Valence Electrons | 3 |
| Year of Discovery | 1875 |
| Discoverer | Lecoq de Boiskaudran |