Chemistry: Principles and Practice (3rd Edition)

Published by Cengage Learning
ISBN 10: 0534420125
ISBN 13: 978-0-53442-012-3

Chapter 2 - Atoms, Molecules, and Ions - Questions and Exercises - Exercises: 2.43

Answer

Atomic mass = 69.72 u The element is gallium (Ga).

Work Step by Step

Atomic mass of the element = $(\frac{60.11}{100}\times68.926u)+(\frac{39.89}{100}\times70.926u)$ = 69.72 u The element with atomic mass 69.72 u is gallium and its symbol is Ga (Refer Periodic Table)
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