## Chemistry: Molecular Approach (4th Edition)

Published by Pearson

# Chapter 25 - Exercises - Page 1153: 1

#### Answer

The ns orbital electrons are lost first.

#### Work Step by Step

When a transition metal forms an ion, it loses electrons first from the ns orbital before losing electrons from the $\left( n-1 \right)\text{d}$ orbital. For example, Fe has an electron configuration of$[Ar]3{{d}^{6}}4{{s}^{2}}$ and during the formation of Fe2+ it loses both the 4s electrons.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.