17 Cl Chlorine 35.45 u

Chlorine

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周期
3
17
区块
p-区块
相态 (STP)
Gas

Chlorine is a highly reactive halogen used extensively in water purification. It is the second lightest halogen and an essential element for life.

外观: 黄绿色气体

物理属性

原子质量 35.45 u
密度 0.003214 g/cm³
熔点 -101.5 °C
沸点 -34.0 °C
STP相态 Gas
原子半径 79.0 pm

电子属性

电负性 3.16
电离能 1251.2 eV
电子亲和能 349.0 eV
价电子 7

电子构型

构型 [Ne] 3s² 3p⁵

Electron Shell Configuration

Chlorine electron shell configuration Cl 2e⁻ 8e⁻ 7e⁻

Position in Periodic Table

Chlorine position in the periodic table Cl

发现

发现者: Carl Wilhelm Scheele
年份: 1774

Compounds Containing Chlorine

更多卤素

Frequently Asked Questions

What is Chlorine?
Chlorine (Cl) is a chemical element with atomic number 17. It is a gas at standard temperature and pressure, classified as a 卤素.
What are the key properties of Chlorine?
Chlorine has an atomic mass of 35.45 u, density of 0.003214 g/cm³, melting point of -101.5°C, boiling point of -34.0°C.
What is the electron configuration of Chlorine?
The electron configuration of Chlorine is [Ne] 3s2 3p5. It is in the p-block of the periodic table.
Who discovered Chlorine?
Chlorine was discovered by Carl Wilhelm Scheele in 1774.
What is the electronegativity of Chlorine?
Chlorine has an electronegativity of 3.16 on the Pauling scale.