Respostas

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2014-06-25T01:53:49-03:00
12 : 1s2, 2s2, 2p6, 3s2
20 : 1s2, 2s2, 2p6, 3s2, 3p6, 4s2
26: 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 4d6
35: 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 4d10, 4p5
15: 1s2, 2s2, 2p6, 3s2, 3p3
55 : 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p6, 5s2,4d10, 5p6, 6s1
2 5 2