Ni3+

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ErinKim1I
Posts: 31
Joined: Fri Apr 06, 2018 11:03 am

Ni3+

Postby ErinKim1I » Wed May 09, 2018 1:53 pm

Hi,

Can someone explain to me why the electron configuration of Ni3+ is [Ar] 3d^7, without the 4s orbitals filled up?

Thanks

ErinKim1I
Posts: 31
Joined: Fri Apr 06, 2018 11:03 am

Re: Ni3+

Postby ErinKim1I » Wed May 09, 2018 1:56 pm

Nevermind, I got it

Celeste Martinez 1K
Posts: 31
Joined: Fri Apr 06, 2018 11:04 am
Been upvoted: 1 time

Re: Ni3+

Postby Celeste Martinez 1K » Wed May 09, 2018 9:18 pm

I'll still explain it, just in case someone else is confused:
Nickel's (Ni) electron configuration is: [Ar] 3d^8 4s^2
Ni3+ means removing 3 electrons and when we do this, we have to take the electrons off from the highest energy, in this case, 4s. Since you can only take 2 electrons away from 4s, we have to take one away from 3d^8 which leaves us with the answer: Ni3+: [Ar] 3d^7

Camille 4I
Posts: 57
Joined: Sat Aug 24, 2019 12:18 am

Re: Ni3+

Postby Camille 4I » Tue Nov 05, 2019 3:49 pm

Hi,
Wouldn't we want Ni to have a half full 3d orbital, since it is more stable that way?


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