General, Organic, and Biological Chemistry: Structures of Life (5th Edition)

Published by Pearson
ISBN 10: 0321967461
ISBN 13: 978-0-32196-746-6

Chapter 4 - Atoms - 4.2 The Periodic Table - Questions and Problems - Page 110: 4.9

Answer

a. is Carbon (C) b. is Helium ( He) c.is Sodium (Na) d. is Calcium (Ca) e. is Aluminium (Al)

Work Step by Step

study the periodic table (groups and periods) at page 105 ( 4.2 The Periodic Table) the vertical columns are the groups/family of elements with similar properties the periods are the horizontal lines, counted from 1 to 7. ( ex: sodium is from the third period, group 1A)
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