17
35.45
Cl
Chlorine
Identification
CAS Number: 7782-50-5
Discovery Year: 1774
Discoverer: Carl Wilhelm Scheele
Discovery Location: Sweden
Properties
Atomic Dimensions
Atomic Radius: 100 pm →
Atomic Radius (Rahm): 206 pm
Covalent Radius: 102 pm →Van der Waals Radius: 175 pm
Atomic Volume: 18.7 cm³/mol
Lattice Constant: 6.24 Å
Thermodynamics
Electronic Structure
Electron Config: [Ne] 3s2 3p5
Block: p
Period: 3 →Group: 17 →Electronegativity: 3.16 →Electron Affinity: 3.612725 eV →Oxidation States: -1, +1, +3, +5, +7
Abundance & Geochemistry
Crust Abundance: 145 mg/kg
Sea Abundance: 19400 mg/L
Geochemical Class: semi-volatile
Goldschmidt Class: litophile
About
Chlorine is a yellow-green gas with a pungent odor. It is used for water purification, bleaching, and in the production of many chemicals.
Isotopes
Cl-35 35 75.50%
Cl-37 37 23.90%
