Respostas

2014-02-12T14:07:34-02:00
A) 1s² ,2s², 2p₆,3s²,3p₆,4s²

B) 1s²,2s²,2p²

C) 1s²,2s²,2p₆,3s²

D) 1s²,2s²,2p₆,3s²,3p₆,4s²,3d₆

espero ter ajudado ,