Order of electron loss in ion formation

Moderators: Chem_Mod, Chem_Admin

Katherine Fitzgerald 1A
Posts: 40
Joined: Fri Sep 29, 2017 7:05 am

Order of electron loss in ion formation

Postby Katherine Fitzgerald 1A » Tue Jul 16, 2019 8:17 pm

If an element has d electrons and tends to lose electrons when it forms an ion, that element will first lose electrons from its np orbital, followed by its ns orbitals, followed by its (n-1)d orbitals? Is that correct? Or there any exceptions to that order?

Jeril Joseph 1B
Posts: 55
Joined: Mon Jun 17, 2019 7:23 am
Been upvoted: 1 time

Re: Order of electron loss in ion formation

Postby Jeril Joseph 1B » Tue Jul 16, 2019 11:05 pm

That would be correct, you remove electrons from the right-most side of the configuration or add them at the right-most side. I don't think there's any exceptions.

hannabarlow1A
Posts: 37
Joined: Mon Jun 17, 2019 7:23 am

Re: Order of electron loss in ion formation

Postby hannabarlow1A » Wed Jul 17, 2019 8:07 am

What about with the 3s/4d orbital exception? Does that apply here?

Chem_Mod
Posts: 18153
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 423 times

Re: Order of electron loss in ion formation

Postby Chem_Mod » Wed Jul 17, 2019 10:03 am

I believe you are referring to the 3d/4s orbital exception. Electrons in the 4s energy level are lost first because electrons lost first will come from the highest energy level. The 4s orbital is higher in energy than the 3d orbital.

Brian Kwak 1D
Posts: 88
Joined: Fri Sep 28, 2018 12:17 am

Re: Order of electron loss in ion formation

Postby Brian Kwak 1D » Wed Jul 17, 2019 10:23 am

The highest energy level electron would be lost first. For elements in the 4th row it’s important to note that the 4s is a higher energy level than 3d so if the configuration only has 3d and 4s orbitals then 4s would be lost first.


Return to “Ionic & Covalent Bonds”

Who is online

Users browsing this forum: No registered users and 2 guests