Chlorine

ElementChlorineSymbolCl
Atomic Number17Molar Mass35.45 gmol-1
Electron Configuration[Ne]3s23p5Normal Stategas nonmetal
Density @STP3.21x10-3 g cm-3Melting Point-101oC
Boiling Point-34oCStable Isotopes35Cl, 37Cl
Atomic Radius99 pmIonic Radius181 (1-) pm
Electronegativity (Pauling)3.16Ionization Energy (1st)1251 kJ mol-1
Ionization Energy (2nd)2297 kJ mol-1Ionization Energy (3rd)3826 kJ mol-1
Molar Heat Capacity21.8 J K-1mol-1Standard Molar Entropy165.2 J K-1mol-1
Enthalpy of Fusion6.41 kJ mol-1Enthalpy of Vapourization20.4 kJ mol-1
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