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The NO2 Lewis structure has a total of 17 valence electrons. It's not common to have an odd number of valence electrons in a Lewis structure. Because of this we'll try to get as close to an octet as we can on the central Nitrogen (N) atom.This will mean that it will only have 7 valence electrons.or the NO2 Lewis structure, calculate the total number of valence electrons for the NO2 molecule. After determining how many valence electrons there are in NO2, place them around the central atom to complete the octets. It is helpful if you:
Electron geometry should be trigonal planar because there are three regions of electron density about nitrogen (one single bond,one double bond, one lone pair). The molecular geometry should be bent and it should be somewhat less than 120 deg because the lone pair takes up more volume than a bond.eport Abuse. Start by drawing O-N-O. Count the total number of valence electrons. 6 for each oxygen (12) plus 5 for nitrogen plus one for the negative charge, total of 18. Count the bonds you used (4 electrons) and you've got 14 left. Put lone pairs around the terminal atoms (oxygens) to satisfy their octets.