What is the noble gas notation of nickel?

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