Chemistry: Molecular Approach (4th Edition)

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

Chapter 8 - Exercises: 51

Answer

The number of valence electrons is: Ba : 2 Cs : 1 Ni : 10 S : 6

Work Step by Step

The number of valence electrons is determined by the group number of the element. Ba : 2 (Group 2) Cs : 1 (Group 1) Ni : 10 (Group 10) S : 6 (Group 16 : valence electrons = 16 -10 = 6)
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