00:02
Are given four substances, n -af, sodium fluoride, carbon tetrafluoride, oxygen diphyl chloride, and lithium fluoride.
00:23
These two are ionic, so these are going to have the most ionic character, and we can figure out what the ionic character will be, they're both with fluorite, and they're all with fluorines, i see.
00:38
This is non -polar, so this is going to have the least ionic character, non -polar covalent.
00:53
And this is going to be polar covalent.
01:00
So it will be second because it's going to be less than our ionic.
01:05
And sodium has an electronegativity of 0 .93.
01:18
Fluorine is 3 .98.
01:25
So our electronegativity difference is 3 .98.
01:29
Whoops see, turn my calculator on 3 .98 minus .93 is 3 .05.
01:47
This is electronegativity difference...