Chemistry: Molecular Approach (4th Edition)

Published by Pearson
ISBN 10: 0134112830
ISBN 13: 978-0-13411-283-1

Chapter 3 - Exercises: 8

Answer

Some ionic compounds include the charge of the metal ion, because that metal ion is capable of making multiple type of cations, so the charge of the metal ion is written in Roman numerals such as (I), (II) or (III). The roman numerals are only important when an element can be a cation of multiple different charges.

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