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11 = 1s2-2s2-2p6-3s1 Z = 11 Sodio
45 = 1s2-2s2-2p6-3s2-3p6-4s2-3d10-4p6-5s2-4d7 z = 45 rodio
58 = 1s2-2s2-2p6-3s2-3p6-4s2-3d10-4p6-5s2-4d10-5p6-6s2-4f2 Z =58 Cerio
14 = 1s2-2s2-2p6-3s2-3p2 Z = 14 silicio