Cl
Chlorine
17
Atomic Number: 17
Atomic mass: 35.4532
Ionization energy: 1251
Electronaffinity: -349
Covalent radius: 99
Calculated radius: 79
Empirical radius: 100
Vanderwaals radius: 175
Electronegativity: 3.16
Density: 3.2
Oxidation states: -1, 1, 2, 3, 4, 5, 6, 7
Melting point: 172
Boiling point: 239
Electron configuration: [Ne] 3s2 3p5
Element group: 17
Element period: 3

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