00:01
Alright, so to look at the brf lewis structure, the first thing we need to do is identify what group they're in, so we know how many electrons they have.
00:08
Vr is in group seven, so that means it has seven electrons.
00:12
Florin's in group seven, so it also has seven electrons.
00:15
So when i draw goes out, that ends up being one, two, three, four, five, six, seven.
00:23
And you've got to go in a full circle because you don't make pairs without drawing around.
00:28
So what happens is the bromine and the fluorine share one electron.
00:40
They share one electron each to make a pair, and then that is where our dipole moment occurs.
00:53
To calculate the percent ionic character, i use the measured dipole moment, which i symbolized by mu m over the dipole moment if the electron was transferred, so i call that mu -e.
01:05
M, we know it's a given, it's 1 .4d...