Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 12 - Stoichiometry - 12 Assessment: 91

Answer

Cesium

Work Step by Step

Cesium is larger. Remember atom size increases as you go down in groups (extra orbitals) and decreases as you move across a period (because of increased contraction from the inc number of protons pulling the electrons).
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