00:01
We are asked to describe the bonding of the nitrate ion no3 1 - in terms of delocalized molecular orbitals.
00:10
So whenever you see delocalized molecular orbitals, it means that we're looking at within a structure or molecule.
00:17
We're looking at a resonant structure.
00:21
So in this case, we must look at nitrate within the molecule having the ability to have multiple bonds in multiple places, which would allow for those delocalized electrons.
00:37
Okay, so let's start with the lewis structure.
00:41
So nitrogen has 5 valence electrons.
00:45
Oxygen has 6 times 3.
00:48
And the ion has an extra charge of 1-, which means we're going to add one more electron.
00:54
So that gives us 24 electrons in the system.
00:58
Nitrogen is in period 2, so it cannot as a central add nitrogen, cannot take on an expanded octet.
01:07
So we're going to take the nitrogen, we're going to put it central, and we give everything an octet...