17 Cl Chlorine 35,45 u

Chlorine

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Periode
3
Gruppe
17
Block
p-Block
Phase (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.

Erscheinungsbild: Pale yellow-green gas

Physikalische Eigenschaften

Atommasse 35.45 u
Dichte 0.003214 g/cm³
Schmelzpunkt -101.5 °C
Siedepunkt -34.0 °C
Phase bei STP Gas
Atomradius 79.0 pm

Elektronische Eigenschaften

Elektronegativität 3.16
Ionisierungsenergie 1251.2 eV
Elektronenaffinität 349.0 eV
Valenzelektronen 7

Elektronenkonfiguration

Konfiguration [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

Entdeckung

Entdeckt von: Carl Wilhelm Scheele
Jahr: 1774

Compounds Containing Chlorine

Mehr Halogen

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 halogen.
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.