Valence

Valence Electrons.

These are called Valence...

This chlorine has 1,2,3,4,5,6,7 valence electrons, and this chlorine over here has 1,2,3,4,5,6,7 valence electrons.

He has eight valence electrons.

They both have seven valence electrons.

Or you could say three valence electrons.

Valence electrons are just the outermost electrons.

Valence means good or bad, positive or negative.

So how many valence electrons does it have?

Valence electrons, or electrons in the outermost shell?

Where you're only drawing the outermost, valence electrons.

And let me draw the left's valence electrons.

So a good partner to bond with is hydrogen, because It (carbon) has four valence electrons, and then hydrogen has one valence electron.

In a stable form it has seven valence electrons.

Potassium has one valence electron in its fourth shell.

So hydrogen has this one electron on its valence shell.

Sodium wants to lose its one electron in its valence shell.

Let me draw the valence electrons of each of these chlorines.

He has one, two, three, four, five, six, seven valence electrons.

And that's because the overall radius of the atom increases, so the valence electrons in radon are a little bit less strongly attracted than the valence electrons in helium.

It will have eight valence electrons but it'll have a negative charge.

This iron has 2 valence electrons, because the outer shell is 4s2.

It has the other six valence electrons one, two, three, four, five, six.

Remember it has five valence electrons it wants to share them with oxygen.

But say we have one carbon over here, and it has 4 valence electrons.

A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons.

So three important ones that I can think of are persistence, gradations in intensity, and valence.

So now we have a 3 carbon chain that has one, two, three, four valence electrons.

This is because an atom of silicon has four electrons in its outermost or valence shell.

In p type doping, an element with only three valence electrons is added to the lattice.

And this carbon is getting all of its valence electrons, all four, hogged by the oxygen.

1864 Lothar Meyer develops an early version of the periodic table, with 28 elements organized by valence.

And then we have the chlorine with its one, two, three, four, five, six, seven valence electrons.

Biography Groves was born in Newton Valence, Hampshire, England and was the only son in a family of six.

That's just the magic number, as we learned in regular chemistry, for all molecules, that's the stable valence structure,

Well, in the last video we saw that every element in a column has the same number of valence electrons.

To make n type semiconductor, you take pure silicon and inject a small amount of an element with 5 valence electrons,

And as you start to read on, you can see that maybe there's some kind of political valence behind some of this.

And so this is a completely valid molecular structure, but it was kind of a pain to draw all of these valence electrons.

Studies have consistently shown that holding all else equal, subjects will predict positive outcomes to be more likely than negative outcomes (see valence effect).

And then iodine has seven valence electrons so if they each share one, they'd get complete as well, so let's just review that right now.

So if we get our Periodic Table out, hydrogen's got one valence electron, so if they have two hydrogen atoms, they can share them with each other.

So the carbon, this valence electron right here, could be contributed to half of a bond, and then they will bond, and this bond over here will break.

Their work was based on the valence bond model, which assumes that a chemical bond is formed when there is good overlap between the atomic orbitals of participating atoms.