element.nameElectron Panel Modal created by GPPT Lab17Atom NumberClSymbolChlorineNameHalogenCategory17.0GroupGasPhaseDiscovered ByCarl Wilhelm Scheele1774Year35.450uAtomic Mass0.000kJ/molMolar Heat175.00Atomic Radius17.0Groupg/cm33.200Density3.0Period239.100°KBoil171.600°KMelt
Electronselement.nameElectron shell created by GPPT Lab contact@gppt.tnCl17
Protons and Neutronselement.nameElectron shell created by GPPT Lab contact@gppt.tn17 neutron17 Proton
Chlorine is a chemical element with symbol Cl and atomic number 17. It also has a relative atomic mass of 35.5. Chlorine is in the halogen group (17) and is the second lightest halogen following fluorine.