Answer
63
Work Step by Step
The atomic number is equal to the number of protons, which is 63.
Chemistry: The Molecular Science (5th Edition)
by Moore, John W.; Stanitski, Conrad L.
Published by
Cengage Learning
ISBN 10:
1285199049
ISBN 13:
978-1-28519-904-7
Chapter 2 - Chemical Compounds - Summary Problem - Part I - Page 88: b
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