Question #245910

What are the valence electrons for the following elements?

A) 1s2 2s2 2p6 3s1                                            C) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2

B) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3                   D)1s2 2s2 2p6 3s2 3p6

 


1
Expert's answer
2021-10-04T05:11:07-0400

A. 1

B.2

C.3

D.2


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