Midterm Question 5C

Moderators: Chem_Mod, Chem_Admin

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

Midterm Question 5C

Postby hannabarlow1A » Tue Jul 16, 2019 7:57 am

On the midterm, question 5C asks: Write the ground-state electron configuration for Cu+ and give the first two quantum
numbers for the last electron.
Could someone explain how you get the configuration [Ar]3d^10?

Chem_Mod
Posts: 18135
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 421 times

Re: Midterm Question 5C

Postby Chem_Mod » Tue Jul 16, 2019 9:32 am

First write the ground state configuration for neutral Cu. That would give you [Ar]3d^(10)4s^(1). *Remember that Cu transfers a 4s electron to its 3d orbital because a full 3d orbital gives it more stability). To get Cu+, remove one electron. The electron in the highest energy level is the 4s, so we remove that electron and end up with [Ar]3d^(10)


Return to “Electron Configurations for Multi-Electron Atoms”

Who is online

Users browsing this forum: No registered users and 1 guest