## Problem 2.47

604807557
Posts: 51
Joined: Wed Nov 16, 2016 3:02 am

### Problem 2.47

For each of the following ground-state atoms, predict the type of orbital (1s, 2p, 3d, 4f, etc.) from which an electron will be removed to form the +1 ion: (a) Ge; (b) Mn; (c) Ba; (d) Au.

The answers are: (a) 4p; (b) 4s; (c) 6s; (d) 6s

What method should I use to get the correct answers?

Stephanie H
Posts: 20
Joined: Fri Jun 23, 2017 11:39 am

### Re: Problem 2.47

Write the electron configuration of each and typically the last orbital will not be completely filled, so that will be the orbital the electron will be removed from.

Paul Wong1B
Posts: 25
Joined: Fri Jun 23, 2017 11:39 am

### Re: Problem 2.47

Be sure that when removing electrons, the electrons from the ns state are removed first before removing those from the (n-1)d state. (e.g. 4s state electrons before 3d electrons)

DavidEcheverri3J
Posts: 36
Joined: Fri Sep 28, 2018 12:26 am

### Re: Problem 2.47

Paul Wong1B wrote:Be sure that when removing electrons, the electrons from the ns state are removed first before removing those from the (n-1)d state. (e.g. 4s state electrons before 3d electrons)

what this means is, for example in B, 3d^5 comes before 4s^2 when written out, so since 4s^2 is in front that is the orbital you would be using

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