![]() ![]() Want to see this shortcut brought to life? See my formal charge video below Lone pairs represent 2 electrons sitting on the atom so that Has = 2Įach bond only counts for a single electron since the second electron in the bond is touching the other atom. ![]() Has = the number of electrons an atom HAS directly attached, touching the atom in question. Should = the number of valence electrons that a neutral atom SHOULD have. Let’s make sure you understand this shortcut This shortcut is guaranteed to save precious seconds on your exam IF AND ONLY IF you understand how to apply it.īut when you understand it you’ll be able to solve formal charge in your head, in under 8 seconds per atom. Here another option, MY version – one that is easier, faster, and comes out with the same result! Formal Charge Calculation Shortcut Yes the equation works, but it’s far too tedious and annoying! There are just too many steps and calculations. A triple bond of 6 electrons allows each atom to claim three.ĭo you dread running through this every time you finish a reaction? A double bond containing four electrons allows each atom to claim 2.
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