Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 2 - Problems - Page 84: 2.55

Answer

Group 1 elements have one electron in their outermost shell; by donating it, they can easily acquire the stable electonic configuration of its nearby noble elements. Thus, it is reactive. Group 17 elements require one electron in their outermost shell to acquire the stable electonic configuration of its nearby noble elements. Thus they accept one electron very easily and are reactive.

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