Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 8 - Covalent Bonding - 8 Assessment: 109

Answer

Calcium and barium are both located in Group 2A. Atomic radii increases down a group. Therefore, barium is the larger atom. Silicon and sulfur are both located in Period 3. Atomic radii decreases across a period. Therefore, silicon is the larger atom. Sodium

Work Step by Step

Calcium and barium are both located in Group 2A. Atomic radii increases down a group. Therefore, barium is the larger atom. Silicon and sulfur are both located in Period 3. Atomic radii decreases across a period. Therefore, silicon is the larger atom. Sodium
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