Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 4 - Atoms and Elements - Exercises - Problems: 67

Answer

Cl and F (b)

Work Step by Step

chlorine and fluorine are both halogens, and are therefore most likely to have the same properties, like reactivity.
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