00:01
Okay, we've got double bond with bromine, chlorine, and chlorine.
00:08
Is this e or z? okay, well, we've got to assign priority to the things on either side of the double bond.
00:17
Bromene is a higher priority than chlorine because bromine has a higher atomic mass or atomic number.
00:25
And then chlorine has a higher priority than this hydrogen with the same reason.
00:31
So are these on the same side or opposite side? they're on opposite sides.
00:37
So that's e.
00:38
The first one is e.
00:39
Let's continue.
00:43
So now we've got this sort of branch structure.
00:53
So on the right hand side, it goes carbon, carbon, hydrogen, hydrogen, hydrogen, hydrogen.
00:59
They're the same so far.
01:00
And the first difference is the bromine versus the iodine.
01:05
And iodine has a higher priority than bromine.
01:07
So that's our priority rules here.
01:10
Well, whereas on the other side, we've got three hydrogens here.
01:16
But here we've got two hydrogens and a deuterium.
01:19
And deuterium is hydrogen with an extra neutron...