Lewis structure

Question

Draw the Lewis formulas for CH3SCN giving each atom a formal

charges! Give the resonance hybrid structure!

Answer 1

Here is a video I posted on the Wyzant channel, and on my profile page, showing how to do several resonance structures:

https://www.youtube.com/watch?v=s_nNOjaSLmY

Note, for the problem as given, there is no correct answer, it is not possible to give every atom a positive or negative formal charge. The C and H in CH3 can only be FC=0.

Here I draw 4 res structures for this molecule, so it takes awhile to show how one arrives at 4, but even more could be drawn. These 4 show how the S, C and N can all have formal charges, even though more hypothetical resonance structures are possible.