Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 2 Atoms, Molecules, and Ions - Study Questions - Page 95j: 154



Work Step by Step

Atomic weight: $135.9090×0.193/100+137.9057×0.250/100+ 139.9053×88.48/100+141.9090×11.07/100= 140.1046$ The closest atomic weight is cerium's.
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