Write the general outer electronic configuration of s-, p-, d- and f- block elements.

Explanation

a. `s`-block elements:`ns^(1-2)`,where `n=2-7(Period)`
b. `p`-block elements:`ns^(2)np^(1-6)`,where `n=2-6(Period)`
c.`d`-block elements:`(n-1)d^(1-10)ns^(0-2)`,where `n=4-7(Period)`
d.`f`-block elements:`(n-2)f^(0-14)(n-1)d^(0-1)ns^(2)`,where `n=6-7(Period)`