00:01
Okay, so chapter two, problem one, what exactly does an atomic number tell us? well, first we'll start with what exactly is it.
00:10
Let's say we have carbon.
00:12
And on our elemental chart here is going to be some numbers attached to it.
00:23
Got one up high, that's a 12, and then one below on the left, and that's a 6.
00:31
And our atomic number is going to be the one in the lower left.
00:45
Here, the letters are atomic symbol, and that just says, what element is it? and then here in the top is...
01:06
Okay, and so the atomic number represents the number of protons.
01:16
So we know at the very least it does that...