00:01
In order to find the empirical formula of this structure, we need to know the number of xenon atoms and the number of fluorine atoms in our cell.
00:10
So our first step is we're going to take the one xenon atom in the center and add it to the ratio of the corners.
00:18
So there are eight corners in a cube, and for every one corner of our cell, there is one eighth of a xenon atom.
00:26
So we're going to add these two values together, and we will get that in our unit cell we have a total of two xenon atoms.
00:38
And now we can do a very similar process with the fluorine atoms, but instead of corners, we're going to consider the edges.
00:45
So we have eight edges, and for every one edge of our cell, there is one -fourth of a fluorine atom, and we're going to add the two fluorine atoms from inside our our cell and we get that there is a total of four fluorine atoms in the cell...
