Periodic Table of Elements showing Chlorine halogen gas elements


Atomic Number17
Molar Mass35.45 gmol-1
Electron Configuration[Ne]3s23p5
Normal Stategas nonmetal
Density @STP3.21x10-3 g cm-3
Melting Point-101oC
Boiling Point-34oC
Stable Isotopes35Cl, 37Cl
Atomic Radius99 pm
Ionic Radius181 (1-) pm
Electronegativity (Pauling)3.16
Ionization Energy (1st)1251 kJ mol-1
Ionization Energy (2nd)2297 kJ mol-1
Ionization Energy (3rd)3826 kJ mol-1
Molar Heat Capacity21.8 J K-1mol-1
Standard Molar Entropy165.2 J K-1mol-1
Enthalpy of Fusion6.41 kJ mol-1
Enthalpy of Vapourization20.4 kJ mol-1
[Back to Periodic table]

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