H:1s1
He:1s2
Li:1s2 2s1 或[He]2s1
Be:1s2 2s2 或[He]2s2
B:1s2 2s2 2p1 或[He]2s2 2p1
C:1s2 2s2 2p2 或[He]2s2 2p2
N:1s2 2s2 2p3 或[He]2s2 2p3
O:1s2 2s2 2p4 或[He]2s2 2p4
F:1s2 2s2 2p5 或[He]2s2 2p5
Ne:1s2 2s2 2p6 或[He]2s2 2p6
Na:1s2 2s2 2p6 3s1 或[Ne]3s1
Mg:1s2 2s2 2p6 3s2 或[Ne]3s2
Al:1s2 2s2 2p6 3s2 3p1 或[Ne]3s2 3p1
Si:1s2 2s2 2p6 3s2 3p2 或[Ne]3s2 3p2
P:1s2 2s2 2p6 3s2 3p3 或[Ne]3s2 3p3
S:1s2 2s2 2p6 3s2 3p4 或[Ne]3s2 3p4
Cl:1s2 2s2 2p6 3s2 3p5 或[Ne]3s2 3p5
Ar:1s2 2s2 2p6 3s2 3p6 或[Ne]3s2 3p6
K:1s2 2s2 2p6 3s2 3p6 4s1 或[Ar]4s1
Ca:1s2 2s2 2p6 3s2 3p6 4s2 或[Ar]4s2
H:1s1
He:1s2
Li:1s2 2s1 或[He]2s1
Be:1s2 2s2 或[He]2s2
B:1s2 2s2 2p1 或[He]2s2 2p1
C:1s2 2s2 2p2 或[He]2s2 2p2
N:1s2 2s2 2p3 或[He]2s2 2p3
O:1s2 2s2 2p4 或[He]2s2 2p4
F:1s2 2s2 2p5 或[He]2s2 2p5
Ne:1s2 2s2 2p6 或[He]2s2 2p6
Na:1s2 2s2 2p6 3s1 或[Ne]3s1
Mg:1s2 2s2 2p6 3s2 或[Ne]3s2
Al:1s2 2s2 2p6 3s2 3p1 或[Ne]3s2 3p1
Si:1s2 2s2 2p6 3s2 3p2 或[Ne]3s2 3p2
P:1s2 2s2 2p6 3s2 3p3 或[Ne]3s2 3p3
S:1s2 2s2 2p6 3s2 3p4 或[Ne]3s2 3p4
Cl:1s2 2s2 2p6 3s2 3p5 或[Ne]3s2 3p5
Ar:1s2 2s2 2p6 3s2 3p6 或[Ne]3s2 3p6
K:1s2 2s2 2p6 3s2 3p6 4s1 或[Ar]4s1
Ca:1s2 2s2 2p6 3s2 3p6 4s2 或[Ar]4s2