Electron Configuration

[Ar] 4s2 3d10 4p6

Krypton means "hidden"
Melting Point: -157.37 oC
Boiling Point: -153.35 oC
Heat of Vaporization: 108 J/g
Heat of Fusion: 19.57 J/g
Specific Heat Capacity: 0.248 J/g . Co or 0.06 cal/g . Co
Density: 3.74 g/cm3