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 4.7 - Trends in Periodic Properties - Additional Questions and Problems - Page 131: 4.91c

Answer

There are 79 protons and electrons in the atom. There are 120 neutrons in the atom.

Work Step by Step

The number of protons is given by the lower number. The number of electrons is equal to the number of protons. The number of neutrons is found by subtracting the bottom number from the top number (mass #).
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.