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Chlorine @ Periodic Table of Chemical Elements

17

Cl

Chlorine

35.4532

2
8
7
Chlorine photo
PropertyValue
Atomic number17
Atomic weight35.4532 amu
Electronic configuration1s22s22p63s23p5
Stable and very long lived isotopes35Cl: 75.77%, 37Cl: 24.23%
Density 0.003214 g/cm3 (STP)
Melting -100.84 °C
Boiling -101 °C
Covalent radius 0.99 Å
Van der Waals radius 1.75 Å
Ionic radius 1.81 Å
First ionization potential 12.967 eV
Electron affinity -3.617 eV
Sample compounds
NaCl
HCl
KCl
CaCl2
Cl2
MgCl2
Periodict table
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