List in Order of Increasing Number of Unpaired Electrons: N,Na,Si,Cr,Ar

Multiple Choice

List in order of increasing number of unpaired electrons: N,Na,Si,Cr,Ar.

A) Cr < Si < Na < N < Ar
B) Ar < Cr < N < Na < Si
C) Ar < Cr < Si < Na < N
D) N < Na < Cr < Si < Ar
E) Ar < Na < Si < N < Cr