14 Si Silicon 28,085 u

Silicon

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Chu kỳ
3
Nhóm
14
Khối
p-khối
Pha (STP)
Solid

Silicon is the second most abundant element in Earth's crust after oxygen. It is the foundation of modern electronics and semiconductor technology.

Ngoại quan: Crystalline, reflective with bluish tinge

Tính chất vật lý

Khối lượng nguyên tử 28.085 u
Mật độ 2.3296 g/cm³
Điểm nóng chảy 1413.8 °C
Điểm sôi 3264.8 °C
Pha ở STP Solid
Bán kính nguyên tử 111.0 pm

Tính chất điện tử

Độ âm điện 1.9
Năng lượng ion hóa 786.5 eV
Ái lực electron 133.6 eV
Electron hóa trị 4

Cấu hình electron

Cấu hình [Ne] 3s² 3p²

Electron Shell Configuration

Silicon electron shell configuration Si 2e⁻ 8e⁻ 4e⁻

Position in Periodic Table

Silicon position in the periodic table Si

Khám phá

Được phát hiện bởi: Jons Jacob Berzelius
Năm: 1824

Khối & Chu kỳ

Chu kỳ

Bảng tuần hoàn

Lanthanide Actinide

Compounds Containing Silicon

Thêm Á Kim

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Frequently Asked Questions

What is Silicon?
Silicon (Si) is a chemical element with atomic number 14. It is a solid at standard temperature and pressure, classified as a á kim.
What are the key properties of Silicon?
Silicon has an atomic mass of 28.085 u, density of 2.3296 g/cm³, melting point of 1413.8°C, boiling point of 3264.8°C.
What is the electron configuration of Silicon?
The electron configuration of Silicon is [Ne] 3s2 3p2. It is in the p-block of the periodic table.
Who discovered Silicon?
Silicon was discovered by Jons Jacob Berzelius in 1824.
What is the electronegativity of Silicon?
Silicon has an electronegativity of 1.9 on the Pauling scale.