Draw all of the resonance structures for Nitrate, NO3-. (show working).urgent!! PLEASE HELP :S?

Question

The working i believe is to do with the way in which the electrons are moved in each structure... i just don't understand how, could anyone help??

:)

Answer 1

O=N-O

.....|

....O

4 electrons(dots) around the double bonded Oxygen, 6 electrons(dots) around each single bonded Oxygen. All you have to do is shift the position of the double bond to show the three resonance structures. For example the double bond could be between the other Oxygen atom and N instead.

O-N=O

....|

...O

Just do the same again to get the third one. Note that since this is an ion you should place the lewis structure in brackets an indicate the charge as a subscript. Take a look here. http://www.ben.mills.btinternet.co.uk/ch...