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Organic Chemistry/Periodic table
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1H 2He 3Li 4Be 5B 6C 7N 8O 9F 10Ne 11Na 12Mg 13Al 14Si 15P 16S 17Cl 18Ar 35Br
Some of the good news about organic chemistry is that it focuses on a subset of the periodic table, so there are fewer elements to worry about. These are the main elements with which we must concern ourselves, although occasionally a few others will be used in reactions.
Organic chemistry > Periodic table shortened for organic chemistry