Question

What is the noble gas notation of nickel?

Answer 1

Nickel (Ni) is located in the 4th energy level (row) of the periodic table, column 10 (VIII). This position would be an electron configuration of

`1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^7`

To convert this to the Noble Gas notation we revert back to the Noble Gas from period 3 of the periodic table Argon

Argon - Ar `1s^2 2s^2 2p^6 3s^2 3p^6`

We then replace this section of Nickel's electron configuration with [Ar].

`[Ar] 4s^2 3d^7`

I hope this was helpful.
SMARTERTEACHER