00:03
There.
00:04
We can use differences in electronegativities to determine how polar a bond are, a bond is rather.
00:12
The greater the difference in electronegativities, the more polar it is.
00:36
All right.
00:37
And looking at the periodic table, electronegativities have a periodic trend.
00:44
As you go across a period, electronegativities increase, especially for the main group elements.
00:53
As you go down a group, the electronegativity decreases.
01:02
That means we have the greatest electronegativity with fluorine in the upper right corner and the lowest electronegativity with francium in the bottom left.
01:15
We know that the greater the electronegativity, the more polar the bond.
01:19
So that means the closer in proximity two atoms are on the periodic table, the less their difference will be and the lower the polarity.
01:30
So let's look at these pairs that we have here.
01:34
We have carbon and flooring.
01:39
Well, these are a few steps away from each other, especially considering that the electronegativity increases with each group that you go over.
01:48
Let's look at our next pair here.
01:51
We have phosphorus and we have sulfur.
01:55
They are right next to each other.
01:58
So of these two pairs so far, we would expect phosphorus and sulfur to have a smaller difference in their electronegativities and therefore be less polar than the carbon deflory.
02:10
Let's look at another pair.
02:12
S .i...