b)He =1s2
c)Li =1s22s1
d)Be =1s22s2
e)B =1s22s22p1
f)C =1s22s22p2
g)N =1s22s22p3
h)O =1s22s22p4
i) F =1s22s22p5
j) Sc =1s22s22p63s23p63d14s2
k) Ti =1s22s22p63s23p64s23d2
l) Cr =1s22s22p63s23p64s13d5
m) Cu =1s22s22p63s23p64s13d10
n) Zn =1s22s22p63s23p64s23d10
o) Sn =5s24d105p2
p) Cl =1s22s22p63s23p5
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