Multiple Choice
Which of the following best describes the Lewis dot structure for the NH_2^+ ion?
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11. Bonding & Molecular Structure
Lewis Dot Structures: Ions
Multiple Choice
Which of the following statements correctly describes the Lewis dot structure of the NO_2^+ ion?
A
NO_2^+ has a bent structure with one N–O single bond and one N–O double bond.
B
NO_2^+ has a trigonal planar structure with three N–O bonds.
C
NO_2^+ has a linear structure with both N–O bonds equivalent and no lone pairs on nitrogen.
D
NO_2^+ has a linear structure with a lone pair on nitrogen.
Verified step by step guidance1
Step 1: Determine the total number of valence electrons for the NO_2^+ ion. Nitrogen (N) has 5 valence electrons, each oxygen (O) has 6 valence electrons, and since the ion has a +1 charge, subtract one electron from the total count.
Step 2: Draw a skeletal structure with nitrogen as the central atom bonded to two oxygen atoms. Connect the atoms with single bonds initially.
Step 3: Distribute the remaining valence electrons to satisfy the octet rule for oxygen atoms first, then place any leftover electrons on nitrogen.
Step 4: Check the formal charges on each atom. Adjust the bonding by forming double bonds if necessary to minimize formal charges and achieve resonance structures if applicable.
Step 5: Determine the molecular geometry using VSEPR theory. Count the regions of electron density around nitrogen (bonding and lone pairs) to predict the shape and bond equivalency.
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