00:01
Okay, so the octet rule in the lewis model specifies that whenever we form chemical bonds, we're always trying to make sure that everything, all of the elements in the chemical compound, have a total of eight electrons surrounding them.
00:19
Okay.
00:20
Now, the octet rule is just sort of a guiding principle, right? elements don't form bonds because of the octet rule, but they generally form bonds that obey the octet rule.
00:35
Chemical bonding occurs because the bond lowers the potential energy of the starting elements.
00:43
And it just so happens that in most cases, those bonds form such that everything has eight electrons.
00:50
Okay.
00:52
So, for example, if we were to look at a very simple compact.
00:56
Like dinitrogen.
01:00
Okay? and we wanted to see what the chemical bonding of this was.
01:07
The first thing we would have to do is figure out how many dots to put around the structure of n.
01:14
Okay.
01:15
Using a periodic table, you can see that nitrogen is in group 5a.
01:20
Alternatively, you can count across the main group elements.
01:24
You can go lithium, beryllium, boron, carbon, nitrogen.
01:28
That's the fifth element.
01:29
Element, either way you arrive at the conclusion that nitrogen should have five dots...
