Multiple Choice
Determine the Lewis Dot Structure for the following ion:O22–.
4. Molecular Compounds
Lewis Dot Structures: Ions (Simplified)
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Draw the Lewis Dot Structure for the following cation:NH4+.
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Verified step by step guidance1
Identify the central atom in the cation NH4+. In this case, nitrogen (N) is the central atom.
Determine the total number of valence electrons available. Nitrogen has 5 valence electrons, and each hydrogen has 1 valence electron. Since NH4+ is a cation with a +1 charge, subtract one electron from the total count.
Arrange the hydrogen atoms around the nitrogen atom. Each hydrogen will form a single bond with nitrogen, using up 2 electrons per bond.
Distribute the remaining electrons to satisfy the octet rule for nitrogen. In this case, all valence electrons are used in bonding, and nitrogen achieves an octet through its bonds with hydrogen.
Enclose the structure in brackets and indicate the positive charge outside the brackets to represent the cation NH4+.
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