Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 2 - Chemical Compounds - Questions for Review and Thought - General Questions - Page 90e: 110b


4 amu

Work Step by Step

Electrons weigh essentially nothing, so they can be approximated as 0 amu. Protons and neutrons each weigh 1 amu, so: 2 amu+ 2 amu = 4 amu
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