Electron Configuration

[Ne] 3s2 3p5

Chlorine means "yellow-green"
Melting Point: -100.95 oC
Boiling Point: -34.05 oC
Heat of Vaporization: 575.98 J/g
Heat of Fusion: 180.8 J/g
Specific Heat Capacity: 0.479 J/g . Co or 0.11 cal/g . Co
Density: 0.000317 g/cm3