00:01
For question 24, we're going to put these in order of increasing electronegativity.
00:09
We've got sodium, potassium, and rubidium.
00:16
Rubidium is the farthest down, so it's 0 .8.
00:20
So it's going to be rb, which is 0 .8.
00:27
That'll be the same as potassium, also at 0 .8, which will be less than sodium at 0 .9.
00:37
And then for b, it's boron, oxygen, and gallium.
00:43
Boron is 2, oxygen is 3 .5, and gallium is 1 .6.
00:50
So the order is going to be gallium at 1 .6 is less than boron at 2 .0, which is less than oxygen at 3 .5.
01:04
And then that's probably the same order.
01:07
You may not have guessed that both of those were the same from the trend.
01:12
For c, we've got fluorine, chlorine, and bromine.
01:16
This would be in the same order.
01:19
Bromine, farthest down, has the lowest electronegativity.
01:23
Its value is 2 .8.
01:25
That's less than chlorine at 3 .0, which is less than fluorine at 4 .0.
01:34
And then the last one, d, we have sulfur, oxygen, and fluorine...
