Draw the Lewis structure for {eq}\displaystyle \rm NO_2^- {/eq}.


Draw the Lewis structure for {eq}\displaystyle \rm NO_2^- {/eq}.


The polyatomic ion with the chemical formula {eq}\rm NO_2^- {/eq} is named nitrite. Polyatomic ions do not have systematic names, so students tend to memorize the common ones or keep a chart of polyatomic ions available for reference when needed.

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We are asked to draw the Lewis structure for {eq}\rm NO_2^- {/eq}. To do so, we will follow the following steps:

  • Nitrogen is a group 5A element, so...

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Lewis Dot Structures: Polyatomic Ions


Chapter 5 / Lesson 5

Just as the Lewis dot structure can visualize molecules, it can also visualize polyatomic ions, which are ions containing multiple atoms. Explore the actions of polyatomic ions and learn how to visualize them through the lens of the Lewis dot structure.

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