Chemistry: Molecular Approach (4th Edition)

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

Chapter 8 - Exercises - Page 376: 20

Answer

The letter of the main group represents number of valence electrons of each element in that particular group. For example, Group-1 elements have one valence electron (Hydrogen, Sodium, Potassium, etc) and group-2 elements have two valence electrons each (Calcium, Magnesium, etc).

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