Answer by
fellwanderer (146)
The six noble gases are: helium, neon, argon, krypton, xenon, and radon. These elements all have closed electronic shells, which make them extremely stable. The electronic configurations are:
He = 1s2,
Ne = [He] 2s2 2p6,
Ar = [Ne] 3s2 3p6,
Kr = [Ar] 3d10 4s2 4p6,
Xe = [Kr] 4d10 5s2 5p6,
Rd = [Xe] 4f14 5d10 6s2 6p6.