31 Ga Gallium 69,723 u

Gallium

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Chu kỳ
4
Nhóm
13
Khối
p-khối
Pha (STP)
Solid

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

Ngoại quan: Silvery blue

Tính chất vật lý

Khối lượng nguyên tử 69.723 u
Mật độ 5.91 g/cm³
Điểm nóng chảy 29.8 °C
Điểm sôi 2399.8 °C
Pha ở STP Solid
Bán kính nguyên tử 136.0 pm

Tính chất điện tử

Độ âm điện 1.81
Năng lượng ion hóa 578.8 eV
Ái lực electron 28.9 eV
Electron hóa trị 3

Cấu hình electron

Cấu hình [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

Khám phá

Được phát hiện bởi: Lecoq de Boisbaudran
Năm: 1875

Khối & Chu kỳ

Chu kỳ

Bảng tuần hoàn

Lanthanide Actinide

Compounds Containing Gallium

Thêm Kim Loại Hậu Chuyển Tiếp

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 kim loại hậu chuyển tiếp.
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.