00O0 0000 We can draw three inequivalent Lewis structures for the arsenite ion , AsO,. The concepts of formal charge and electronegativity can help us choose the structure that is the best representation. 1. Assign formal charges to the elements in each of the structures below. Note: Count oxygen atoms starting from the left for each structure. 13- :O: :O: :O: Formal Charge As 01 02 03 2. The best Lewis structure for AsO, is Submit Answer Try Another Version 2 item attempts remaining Previous Next

00O0 0000 We can draw three inequivalent Lewis structures for the arsenite ion , AsO,. The concepts of formal charge and electronegativity can help us choose the structure that is the best representation. 1. Assign formal charges to the elements in each of the structures below. Note: Count oxygen atoms starting from the left for each structure. 13- :O: :O: :O: Formal Charge As 01 02 03 2. The best Lewis structure for AsO, is Submit Answer Try Another Version 2 item attempts remaining Previous Next

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter6: Covalent Bonding

Section: Chapter Questions

Problem 51QRT: Several Lewis structures can be written for perbromate ion, , the central Br with all single Br—O...

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A stable triatomic molecule can be formed that contains one atom each of nitrogen, sulfur, and fluorine. Three bonding structures are possible, depending on which is the central atom: NSF, SNF, and SFN. (a) Write a Lewis diagram for each of these molecules, indicating the formal charge on each atom. (b) Often, the structure with the least separation of formal charge is the most stable. Is this statement consistent with the observed structure for this molecule—namely, NSF, which has a central sulfur atom? (c) Does consideration of the electronegativities of N, S, and F from Figure 3.18 help rationalize this observed structure? Explain.
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Several Lewis structures can be written for perbromate ion, , the central Br with all single Br—O bonds, or with one, two, or three Br=O double bonds. Draw the Lewis structures of these possible resonance structures, and use formal charges to predict which makes the greatest contribution to the resonance hybrid.
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