Introductory Chemistry (5th Edition)

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

Chapter 9 - Electrons in Atoms and the Periodic Table - Exercises - Questions - Page 317: 27

Answer

The periodic table is the arrangement of elements in order of their increasing atomic number. Elements with similar properties are grouped together under the same column.

Work Step by Step

In the periodic table elements which have similar chemical and physical properties are placed under the same column. The Group 1 elements have an outer shell electronic configuration of $ns^{1}$. They tend to lose 1 electron in order to achieve noble gas configuration. Example- Li, Na, K etc.
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