00:01
So, here in this question we need to draw the lewis structures also we need to draw the resonance structures for nitrate ion that is no3-.
00:18
So, in no3 - that is nitrate ion we need to find out the total valence electrons.
00:24
So, it will be 5 for nitrogen for oxygen it is 6 here there are 3 oxygen atoms.
00:31
So, it is multiplied with 3 and it is plus 1 because here there is an extra electron that is why the charge is negative.
00:41
So, this will give us a total of 24 electrons.
00:44
Now the molecular geometry of no3 - is something like this.
00:48
So, here we have oxygen here it is bonded to nitrogen this is double bonded to oxygen and this is single bonded to another oxygen and here the overall charge of the compound is minus 1.
01:00
Now if we draw the lewis structure for this then it is somewhat like this.
01:08
So, here nitrogen is the central atom then here there is the double bond oxygen.
01:16
So, here there will be a total of 4 electrons then we have the oxygen which has 2 lone pairs on this side we have the single bonded oxygen.
01:29
So, here the oxygen has 3 lone pairs like this...