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Science Chemistry Chemistry: An Atoms-Focused Approach (Second Edition)

To draw: The Lewis structures for N a + , I n + , C a 2 + , a n d S 2 - . Solution: Lewis structures are: a) b) c) d) Explanation: Lewis structures of ions are drawn by calculating the valence electrons in the ions. This is determined by the charge on the ions. When a neutral atom gains electrons, it gets a negative charge on it. When a neutral atom loses electrons, it gets a positive charge on it. N a + : It belongs to group 1in the periodic table. In a neutral sodium atom, there is one valance electron in the outermost shell. When sodium donates that electron, it gets a +1 charge and there are zero electrons in outermost shell. So the Lewis structure would be: I n + :It belongs to group 13in the periodic table. In a neutral indium atom, there are three valance electrons in the outermost shell. When indium donates one electro, n it gets a + 1 charge, and there are two electrons in the outermost shell. So the Lewis structure would be: C a 2 + : It belongs to group 2in the periodic table. In a neutral calcium atom, there are two valance electrons in the outermost shell. When calcium donates two electrons, it gets +2 charge, and there are zero electrons in the outer shell. So the Lewis structure would be: S 2 - : It belongs to group 16in the periodic table. In a neutral sulfur atom, there are six valance electrons in the outermost shell. When sulfur gains two electrons, it gets a -2 charge, and there are 8 electrons in the outermost shell. So the Lewis structure would be: Conclusion: The number of valence electrons and the charge on the ion are used to draw the Lewis structures of ions.

To draw: The Lewis structures for N a + , I n + , C a 2 + , a n d S 2 - . Solution: Lewis structures are: a) b) c) d) Explanation: Lewis structures of ions are drawn by calculating the valence electrons in the ions. This is determined by the charge on the ions. When a neutral atom gains electrons, it gets a negative charge on it. When a neutral atom loses electrons, it gets a positive charge on it. N a + : It belongs to group 1in the periodic table. In a neutral sodium atom, there is one valance electron in the outermost shell. When sodium donates that electron, it gets a +1 charge and there are zero electrons in outermost shell. So the Lewis structure would be: I n + :It belongs to group 13in the periodic table. In a neutral indium atom, there are three valance electrons in the outermost shell. When indium donates one electro, n it gets a + 1 charge, and there are two electrons in the outermost shell. So the Lewis structure would be: C a 2 + : It belongs to group 2in the periodic table. In a neutral calcium atom, there are two valance electrons in the outermost shell. When calcium donates two electrons, it gets +2 charge, and there are zero electrons in the outer shell. So the Lewis structure would be: S 2 - : It belongs to group 16in the periodic table. In a neutral sulfur atom, there are six valance electrons in the outermost shell. When sulfur gains two electrons, it gets a -2 charge, and there are 8 electrons in the outermost shell. So the Lewis structure would be: Conclusion: The number of valence electrons and the charge on the ion are used to draw the Lewis structures of ions.

Solution Summary: The author explains the Lewis symbols for K +, Al 3+, N 3-, and I -.

Chemistry: An Atoms-Focused Approach (Second Edition)

Chemistry: An Atoms-Focused Approach (Second Edition)

2nd Edition

ISBN: 9780393615197

Author: Thomas R. Gilbert, Rein V. Kirss, Natalie Foster, Stacey Lowery Bretz

Publisher: W. W. Norton & Company

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Chapter 4, Problem 4.50QA

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Chapter 4 Solutions

Chemistry: An Atoms-Focused Approach (Second Edition)

Ch. 4 - Prob. 4.01VP Ch. 4 - Prob. 4.02VP Ch. 4 - Prob. 4.03VP Ch. 4 - Prob. 4.04VP Ch. 4 - Prob. 4.05VP Ch. 4 - Prob. 4.06VP Ch. 4 - Prob. 4.07VP Ch. 4 - Prob. 4.08VP Ch. 4 - Prob. 4.09VP Ch. 4 - Prob. 4.10VP

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