Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0321908449
ISBN 13: 978-0-32190-844-5

Chapter 4 - Section 4.4 - Atomic Number and Mass Number - Study Check 4.6 - Page 109: b

Answer

The atomic number of that atom is: 79.

Work Step by Step

The atomic number is equal to number of protons of an atom. As we have identified in the last exercise, the number of protons is equal to 79. Therefore, the atomic number of that atom is also equal to 79.
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