00:03
Hi there.
00:04
In this question, we need to use vesper theory to predict the shape or the geometry of each of these molecules.
00:14
So starting with the methane, remember we always determine molecular geometry by looking at the central atom.
00:21
So looking at the carbon, there are four atoms bonded to the carbon, and there are zero lone pairs.
00:31
So that tells us that the electron geometry and the molecular geometry are going to be the same thing, because we have four electron domains.
00:44
Okay, so if we are trying to sketch this and we put four groups of electrons coming off of this as far away from each other as possible, we're going to end up with the structure that looks something like what i just drew here.
01:00
And then we're placing an atom on each of these groups of electrons.
01:06
So what we have here is a tetrahedral.
01:12
This is the shape that we call a tetrahedral.
01:15
We get a tetrahedral when there are four atoms bonded to the central atom and zero long pairs.
01:23
So that was going to be a tetrahedral.
01:25
Let's look next at the carbonate...