Chlorine
Chlorine
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Chlorine ΒΆ
AtomicNumber: 17
Element: Chlorine
Symbol: Cl
AtomicMass: 35.453
NumberofNeutrons: 18
NumberofProtons: 17
NumberofElectrons: 17
Period: 3
Group: 17.0
Phase: gas
Radioactive: nan
Natural: yes
Metal: nan
Nonmetal: yes
Metalloid: nan
Type: Halogen
AtomicRadius: 0.97
Electronegativity: 3.16
FirstIonization: 12.9676
Density: 0.00321
MeltingPoint: 172.31
BoilingPoint: 239.11
NumberOfIsotopes: 11.0
Discoverer: Scheele
Year: 1774.0
SpecificHeat: 0.479
NumberofShells: 3
NumberofValence: 7.0