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A system of written symbols used to represent qualities or quantities, elements or molecules, or formulas in general. Usually a notation follows a convention or a guideline, often published by IUPAC-IUPAP. This tag should be used for questions regarding the proper use of a notation or misleading or uncommon notation in the scientific literature. Do not confuse this tag with the [nomenclature] or [terminology] tags.

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Drawing formal charges/ lone pairs?

I'm learning chemistry with Klein's Organic Chemistry as a second language right now: From all of the cases above (oxgen, nitrogen, and carbon), you can see why you have to know how many lone pairs t …
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