00:01
So we're going to be looking at atomic numbers.
00:03
And we know that atomic numbers tell us the number of protons within each element.
00:16
So for instance, if we have atomic number five, we know that that would be boron.
00:26
And if we have atomic number six, we know, let's look over here, atomic number six would be right next to that.
00:34
That's carbon.
00:35
It's a very important one to remember.
00:40
Carbon is number six.
00:41
Now if we look at atomic number 24, that would be chromium, cr, chromium.
00:54
And if we look at atomic number 29, which is over here, we see that that's copper, cu, or transition metals.
01:10
And if we look at atomic number 37, then we're alkaline metals, see that's all.
01:20
R b, which stands for rubidium.
01:27
And if we look at atomic number 44, we see that that's ru, which stands for ruthinium...