And that is what differentiates one atom from one other. If you’ve fifteen protons, you are coping with phosphorus.
I’ve talked lots concerning the philosophy and all of that, however how do I know that that is helium? Is it by the number of neutrons it has? Is it by the number of protons it has? Well the reply is, it is by the number of protons. So if you know the variety of protons in a component, you realize what that factor is.
And the atomic number is the quantity that you just see up there. And that’ s literally the variety of protons.
And the variety of protons, that is defined because the atomic quantity. Now, so for example I said one thing has four protons. Well if we haven’t memorized it, we might look it up on the periodic table of elements, which we’ll be dealing with lots on this playlist. And you’d say, oh, four protons, that’s beryllium.
Well, if an atom is cost-neutral, meaning it has the same number of electrons. And for instance its mass number is twelve.
- And you would possibly already be acquainted with this if you take a look at old movies about atomic initiatives, you may see a drawing that looks something like this.
- And I’ll draw in a second how all of them match collectively and the construction of an atom.
- And you may have this stuff spinning round that look like this.
But now we study, although that is partially true, that the further away an electron is from the nucleus, it does have more, it is true, potential vitality. But the additional away an orbital, it does have more potential. We’re going to go a lot more into that in future movies. But anyway, how do you recognize what an element is?
If they are saying, OK, if this factor has optimistic costs, proper? So for example that is two neutrons and two protons. Then we’ll have some constructive charges right here. We have some unfavorable costs out here. And so if these items had some velocity, enough velocity, they would orbit round this, simply the way a planet will orbit across the Sun.
Or what occurs when you gain or lose electrons. But that doesn’t change what element you’re dealing with. And likewise, whenever you change the number of neutrons, that also does not change the component you are dealing with. But that results in an apparent query of, properly, what number of neutrons and electrons do you’ve?
Words Nearby Atom
And unexpectedly, when you have seven protons, you are dealing with nitrogen. If you have eight, you’re dealing with oxygen. Now, we’ll discuss sooner or later about what happens with charge and all of that.