General, Organic, & Biological Chemistry 3rd Edition

Published by McGraw-Hill Education
ISBN 10: 0-07351-124-2
ISBN 13: 978-0-07351-124-5

Chapter 2 - Atoms and the Periodic Table - Problems - Page 45: 2.15

Answer

See the explanation

Work Step by Step

a) [1]: Mass number = 8 + 8 = 16 [2]: Mass number ≈ 7 + 7 = 14 (assuming 7 neutrons) [3]: Mass number = 8 + 9 = 17 Representation [3] has the highest mass number (17) b. [1]: 8 electrons [2]: 7 electrons [3]: 8 electrons c. Isotope symbol for each species [1]: $^{16}_8O$ [2]: $^{14}_7O$ (assuming 7 neutrons) [3]: $^{17}_8O$
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