00:02
There, in this question, we are looking for the most polar bond.
00:08
Trying to predict the most polar bond.
00:12
So that would mean the two elements with the greatest difference in electronegativity from our choices.
00:28
Because electronegativity is a measure of how strongly an atom pulls the shared electrons toward it.
00:41
And electromagnivities increase as you go across the periodic table.
00:50
And they decrease as you go down.
00:58
So the farther apart two elements are on the periodic table, the more polar a bond between them is likely to be.
01:07
So let's look what we have here.
01:08
We have a carbon to nitrogen bond.
01:13
Well, here's carbon and here's nitrogen.
01:17
They're right next to each other.
01:19
So we wouldn't expect a big difference in electronegativity there.
01:24
The next pair is phosphorus bonded to sulfur.
01:28
Well, here's phosphorus and here's sulfur.
01:32
They are right next to each other, so should not have a big difference in electronegativity.
01:37
Next we see nitrogen to oxygen.
01:41
Well, here's nitrogen and here's oxygen.
01:44
They're also right next to each other.
01:46
So far, we're not able to predict between these because they're all going to have a slight difference...