31 Ga Gallium 69.723 u

Gallium

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周期
4
13
区块
p-区块
相态 (STP)
Solid

Gallium is a soft metal that melts just above room temperature. It is used in semiconductors, LEDs, and solar cells.

外观: 银白色金属

物理属性

原子质量 69.723 u
密度 5.91 g/cm³
熔点 29.8 °C
沸点 2399.8 °C
STP相态 Solid
原子半径 136.0 pm

电子属性

电负性 1.81
电离能 578.8 eV
电子亲和能 28.9 eV
价电子 3

电子构型

构型 [Ar] 3d¹⁰ 4s² 4p¹

Electron Shell Configuration

Gallium electron shell configuration Ga 2e⁻ 8e⁻ 18e⁻ 3e⁻

Position in Periodic Table

Gallium position in the periodic table Ga

发现

发现者: Lecoq de Boisbaudran
年份: 1875

元素周期表

镧系元素 锕系元素

Compounds Containing Gallium

更多后过渡金属

Frequently Asked Questions

What is Gallium?
Gallium (Ga) is a chemical element with atomic number 31. It is a solid at standard temperature and pressure, classified as a 后过渡金属.
What are the key properties of Gallium?
Gallium has an atomic mass of 69.723 u, density of 5.91 g/cm³, melting point of 29.8°C, boiling point of 2399.8°C.
What is the electron configuration of Gallium?
The electron configuration of Gallium is [Ar] 3d10 4s2 4p1. It is in the p-block of the periodic table.
Who discovered Gallium?
Gallium was discovered by Lecoq de Boisbaudran in 1875.
What is the electronegativity of Gallium?
Gallium has an electronegativity of 1.81 on the Pauling scale.