24 Cr Chromium 51,996 u

Chromium

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Chu kỳ
4
Nhóm
6
Khối
d-khối
Pha (STP)
Solid

Chromium is a hard, lustrous transition metal prized for its mirror finish. It is essential in stainless steel production and chrome plating.

Ngoại quan: Silvery metallic

Tính chất vật lý

Khối lượng nguyên tử 51.996 u
Mật độ 7.15 g/cm³
Điểm nóng chảy 1906.8 °C
Điểm sôi 2670.8 °C
Pha ở STP Solid
Bán kính nguyên tử 166.0 pm

Tính chất điện tử

Độ âm điện 1.66
Năng lượng ion hóa 652.9 eV
Ái lực electron 64.3 eV
Electron hóa trị 6

Cấu hình electron

Cấu hình [Ar] 3d⁵ 4s¹

Electron Shell Configuration

Chromium electron shell configuration Cr 2e⁻ 8e⁻ 13e⁻ 1e⁻

Position in Periodic Table

Chromium position in the periodic table Cr

Khám phá

Được phát hiện bởi: Louis Nicolas Vauquelin
Năm: 1797

Compounds Containing Chromium

Thêm Kim Loại Chuyển Tiếp

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Frequently Asked Questions

What is Chromium?
Chromium (Cr) is a chemical element with atomic number 24. It is a solid at standard temperature and pressure, classified as a kim loại chuyển tiếp.
What are the key properties of Chromium?
Chromium has an atomic mass of 51.996 u, density of 7.15 g/cm³, melting point of 1906.8°C, boiling point of 2670.8°C.
What is the electron configuration of Chromium?
The electron configuration of Chromium is [Ar] 3d5 4s1. It is in the d-block of the periodic table.
Who discovered Chromium?
Chromium was discovered by Louis Nicolas Vauquelin in 1797.
What is the electronegativity of Chromium?
Chromium has an electronegativity of 1.66 on the Pauling scale.