What is the electron configuration of #Ni^(+3)#?

1 Answer
Nam D.
Mar 12, 2018

I guess it should be #[Ar]3d^7#.

Explanation:

Well, we first need to find a neutral nickel atom's electron configuration.

It is #[Ar]3d^8\4s^2#.

Source: https://en.wikipedia.org/wiki/Nickel

Now, we need to find the electron configuration for a nickel(III) cation.

That means, it has lost three electrons from its electron configuration, and therefore loses both of its #4s# electrons, and one #3d# electron, thus leaving a configuration of

#[Ar]3d^7#.

I hope this helps!

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