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 - Page 85: 2.65

Answer

Ra and Sr

Work Step by Step

Ra (radium) and Sr (strontium) would exhibit the most similar physical and chemical properties because they are in the same group on the periodic table. Elements belonging to the same group (or column) on the periodic table have the greatest similarity in terms of chemical and physical properties. Both radium and strontium are in group 2A, which is also called the alkaline earth metals.
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