1- Two elements that have np 3 in their ground-state electron configuration are

Question

1- Two elements that have np3 in their ground-state electron configuration are ________

a.    N and As      b.   Ge and Pb.        c.   B and Al.      d.      Li and Mg.         e.   Ca and Ba.

2- A possible set of quantum numbers to describe an electron in a 5p subshell is

            A)      n = 5, l = 2, ml = 2 , ms = +1/2              D)      n = 3, l = 1, ml = 1, ms = - 1/2

            B)      n = 4, l = 0, ml = 0, ms = - 1/2               E)      n = 5, l = 1, ml = 0, ms = +1/2

            C)      n = 5, l = 0, ml = 0, ms = +1/2

Explanation / Answer

1)The valence shell configuration of a ) nitrogen and arsenic which has outer state configuration np3 , all other options don't resemble 2) for 5p ,value of n= 5 ,value of l=1, ml = 0 ,Ms = +1/2

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