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

Explanation

s-block `:ns ^(1-2)`
p-block `: ns ^(2)np ^(1-6)`
d-block ` : (n-1) d ^(1-10) ns ^(0-2)`
f-block `: (n-2) f ^(1-14) (n-1) d ^(0-1)ns ^(2)`