The left of the noble gasses, we get to the halogens. Third shell and it's full, and so on and so forth. Helium's outer shell is theįirst shell and it's full.
#Carbon element valence electrons full#
And that's because all of the noble gasses have full outer shells. They're very content, they don't wanna messĪround with anyone else. They're known as the noble gasses because they're very unreactive, We have around this octet rule are the group 18 elements right over here, also known as the noble gasses. Only has two electrons, is very, very, very stable. Octet rule is the first shell, where it is full with two electrons. For our second, third, fourth,įifth, and on and on shells, you're full when you have eight electrons. So just to remind ourselves, what does it mean to haveĪ full, full outer shell? Well, in general, people To having a full outer shell, either by losing electrons Video, I'm gonna focus most on the extremes of the periodic table, the groups at the left and the right, because those are the closest Similar valence electrons will have similar reactivities, Remember, valence electronsĪre the reactive electrons, the ones that might Have similar properties is, in most cases, they have the same number of valence electrons.
The elements in a given column might have very different atomic numbers, they all have similar properties. When we talk about a group, we're just talking about a column. And in particular, we're going to focus on groups of the periodic table of elements. In this video, we're gonna gain even more appreciation for why the periodic table
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