The number and letter combinations given are the electron orbital configurations of all of the electrons in a neutral atom of magnesium.
cs2Electronic Configurationc6=1s2, 2s2, 2p6 s16=1s2, 2s2, 2p6, 3s2, 3p6s16=1s2, 2s2, 2p6, 3s2, 3p6
1s2 2s2 2p6 3s2 3p6
Group 2 (Alkaline Earth Metals) Beryllium: 1s2 2s2 Magnesium: 1s2 2s2 2p6 3s2 Calcium: 1s2 2s2 2p6 3s2 3p6 4s2 Strontium: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 Barium: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 4d10 5p6 6s2 Radium: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4f14 4d10 4p6 5s2 5d10 5p6 6s2 6s2 6p6 7s2
The element with the electron configuration 1s2 2s2 2p6 is neon.
1s2 2s2 2p6 3s2 3p3
cs2Electronic Configurationc6=1s2, 2s2, 2p6 s16=1s2, 2s2, 2p6, 3s2, 3p6s16=1s2, 2s2, 2p6, 3s2, 3p6
1s2, 2s2 2p6, 3s2 3p1or[Ne], 3s2 3p1
1s2 + 2s2 + 2p6 + 3s2 + 3p4 = sulfur's orbital notation
1s2 2s2 2p6 3s2 3p6
Beryllium- 1s2, 2s2 or [He] 2s2 Magnesium- 1s2, 2s2, 2p6, 3s2 or [Ne] 3s2 Calcium- 1s2, 2s2, 2p6, 3s2, 3p6,4s2 or [Ar] 4s2 Strontium- 1s2, 2s2, 2p6,3s2,3p6, 4s2, 3d10, 4p6,5s2 or [Kr] 5s2
Group 2 (Alkaline Earth Metals) Beryllium: 1s2 2s2 Magnesium: 1s2 2s2 2p6 3s2 Calcium: 1s2 2s2 2p6 3s2 3p6 4s2 Strontium: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 Barium: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 4d10 5p6 6s2 Radium: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4f14 4d10 4p6 5s2 5d10 5p6 6s2 6s2 6p6 7s2
The element with the electron configuration 1s2 2s2 2p6 is neon.
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2 3p3
Mg: 1s2- 2s2 - 2p6 - 3s2
1s2, 2s2, 2p6, 3s2, 3p6
1s2 2s2 2p6 3s2 3p6 4s2 3d3A+