31 Ga Gallium 69,723 u

Gallium

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Periode
4
Golongan
13
Blok
p-blok
Fase (STP)
Solid

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

Penampilan: Silvery blue

Sifat Fisika

Massa Atom 69.723 u
Kerapatan 5.91 g/cm³
Titik Lebur 29.8 °C
Titik Didih 2399.8 °C
Fase pada STP Solid
Jari-jari Atom 136.0 pm

Sifat Elektronik

Keelektronegatifan 1.81
Energi Ionisasi 578.8 eV
Afinitas Elektron 28.9 eV
Elektron Valensi 3

Konfigurasi Elektron

Konfigurasi [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

Penemuan

Ditemukan oleh: Lecoq de Boisbaudran
Tahun: 1875

Tabel Periodik

Lantanida Aktinida

Compounds Containing Gallium

Lebih banyak Logam Pasca-Transisi

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 logam pasca-transisi.
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.