1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
The following is the electron configuration of Krypton (elemental symbol Kr):
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6