General Chemistry 10th Edition

Published by Cengage Learning
ISBN 10: 1-28505-137-8
ISBN 13: 978-1-28505-137-6

Chapter 9 - Ionic and Covalent Bonding - Questions and Problems - Page 374: 9.21


e. s->s>s+

Work Step by Step

As an anion is formed when an element gains an electron and a cation is formed when an element looses an electron. When an element gains an electron in its valance shell it causes an increases in the size of the valance orbital due to electron electron repulsion resulting in increased atomic size. On the other hand when cations loose an electron this repulsion goes down and decreases the atomic radii.
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