Chemistry: The Science in Context (4th Edition)

Published by W.W. Norton & Co.
ISBN 10: 0393124177
ISBN 13: 978-0-39312-417-0

Chapter 2 - Atoms, Molecules, and Ions: Matter Starts Here - Problems - Page 70: 35



Work Step by Step

Option (a) is incorrect. Sulfur (S) is in group 16 and normally forms a 2- ion. Option (b) is incorrect. Phosphorus (P) is in group 15 and normally forms a 3- ion. Option (d) is incorrect. Aluminum (Al) can form 1+, 2+, and 3+ ions, but the most common one is the 3+ ion. Option (c) is correct. Beryllium (Be) is in group 2 and normally forms a 2+ ion.
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