When the element Fe with atomic number 26 undergo chemical reactions, ions with +3 oxidation state are formed.
a) Write the subshell electronic configuration of Fe.
b) Write the subshell electronic configuration of the ions formed during chemical reactions.
c) Does the element show various oxidation states. Why?

Explanation

`a) 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^6 4s^2`
`b) 1s^2 2s^2 2p^6 3s^2 3p^6 3d^5`
c) Yes . Fe is a d - block element .