Question

What is the number of electrons on the outer shell of nickel?

Answer 1

`2`

Explanation:

Electronic configuration of Nickel (`""_28"Ni"`) is

`"1s"^2\ "2s"^2\ "2p"^6\ "3s"^2\ "3p"^6\ "4s"^2\ "3d"^8`

Outermost shell (`4^"th"` shell) contains `2` electrons