00:02
Hi, i would like to talk about the two different types of models for molecules.
00:08
So i'm going to do a little table.
00:10
The two types are the ball and stick model, and the other type of model is the space -filling model.
00:33
So i'm going to set up a little table here.
00:36
I'm going to have a column that talks about what these two types of models are.
00:41
And then i'd like to have a prose good things about the models and a cons, some of the not so good things about these types of models.
00:53
So first of all, what is a ball and stick model? ball and stick model, as the name implies, uses spheres to represent the atoms and then uses sticks, usually little wooden sticks that fit into the holes in the spheres.
01:13
So there are pre -drilled holes in the spheres, and you can stick the sticks in there and then attach other atoms to it.
01:21
So in this model, i am trying to show water or h2o.
01:27
The space filling model, it is going to use truncated spheres.
01:32
What that means is spheres that have been, have some parts of them shaved off.
01:38
So let me try to see if i can make an h2o model.
01:44
Using the space filling, the truncated spheres here.
01:51
It's a little more challenging.
01:57
All right, so something a little more like this, where there's, it's called space filling because you don't see the space between the different atoms.
02:10
Right, some of the pros, for the ball and stick model, it usually shows a pretty good 3d arrangement of the atoms.
02:28
This is going to include bond angles as well.
02:37
These are also pretty easy to assemble.
02:47
All right.
02:48
So those are some of the good things about the ball and stick model...