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 4.5 - Isotopes and Atomic Mass - Questions and Problems - Page 114: 4.34a

Answer

$^{18}_{8}O$

Work Step by Step

Atomic number of Oxygen is 8, hence protons = 8. Atomic mass = protons + neutrons = 8 + 10 = 18
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