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    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

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