Physical and chemical properties of Chlorine

Atomic Number:17
Element Symbol:Cl
Element Name:Chlorine
Atomic Weight:35.453
Group Number:17
Group Name:Halogen
Period Number:3
Ground State Configuration:[Ne] 3s2 3p5
Ground State Level:2Po3/2
Standard State:Gas
Common Valences:1,3,5,7
Bond Length:189.1
Atomic Radius Empirical:100
Atomic Radius Calculated:79
Covalent Radius Empirical:99
Vander Waals Radius:175
Electron Affinity:349.0
First Ionization Energy:1251.2
Pauling Electronegativity:3.16
Sanderson Electronegativity:3.48
Allred Rochow Electronegativity:2.83
Mulliken Jaffe Electronegativity:3.10
Allen Electronegativity:2.869
Molar Volume:17.39
Velocity Of Sound:206
Bulk Modulus:1.1 (liquid)
Electrical Resistivity:> 10**10
Refractive Index:1.000773
Melting Point:-101.5
Boiling Point:-34.04
Critical Temperature:144
Thermal Conductivity:0.0089
Enthalpy Of Fusion:3.2 (per mol Cl atoms)
Enthalpy Of Vaporization:10.2 (per mole Cl atoms)
Enthalpy Of Atmization:122
Most Common Oxidation Numbers:7,5,3,1,-1
Color:Yellowish green
Discovered By:Carl William Scheele
Discovered At:Sweden
Discovered When:1774
Origin Of Name:From the Greek word chloros meaning pale green

Calculate the molecular weight of Chlorine or molecular weight Cl.

Also see the full list of chemical elements and atomic weights.

Compounds that contain Chlorine