0:00
Okay.
00:02
So what we need to do is find out whether the following bonds, which pair of following elements will form a covalent bond that is least polar.
00:12
So we have aluminum bonded to nitrogen, carbon bonded to nitrogen, boron bonded to nitrogen, sulfur bonded to lithium, and oxygen bonded to hydrogen.
00:25
Okay.
00:26
And so really what we're looking for is what's the lowest difference in electro negativity? right.
00:31
So we may want to know what the electronegativity values are for each of these.
00:35
And we can find this in a textbook or in a periodic table.
00:39
Right.
00:40
So aluminum is 1 .5.
00:43
Nitrogen is 3 .0.
00:45
Carbon is 2 .5.
00:48
As we said, nitrogen is 3 .0.
00:51
Boron is 2 .0.
00:53
Nitrogen is 3 .0.
00:55
Sulfur is 2 .5.
01:00
Lithium is 1 .6.
01:04
Okay.
01:04
Oxygen is 3 .5.
01:07
And hydrogen is 2 .1.
01:10
So what's the difference between the largest and smallest for each of these? we've got 1 .5, 0 .5, 1 .0 .9.
01:25
Sorry, lithium is not.
01:27
That seemed weird.
01:27
Lithium is 1 .0 .0 .9.
01:27
Sorry, lithium is not.
01:28
That seemed weird...