Name: Predicting bond type (metals vs. nonmetals) | AP Chemistry | Khan Academy
Uploaded: 2020-03-27T17:35:12.000Z
Duration: 5 min 12 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

Reflexive pronouns

we introduced ourselves to the idea of bonds between atoms,

In this video we're going to dig a little bit deeper

that are likely to be formed between different elements.

And to understand that, I'm going to introduce

and in general, we're just going to think about things

So before I even point out on the periodic table of elements

what are the metals and what are the nonmetals

and maybe what are the ones that are in between,

Well, generally speaking, they conduct electricity.

They tend to be malleable, which is just a fancy way

of saying that you can bend them without breaking.

And generally speaking, and there's exceptions to this,

they're going to be the opposite of this.

They are not going to conduct electricity well.

Now when you look at a periodic table of elements,

how do you divide the metals from the nonmetals?

Well that's what this little scratchy yellow line

So everything above and to the right of this yellow line

is a nonmetal and if you look at the color code

from the folks who made this periodic table of elements,

everything in this yellow color that we have here,

and oxygen and fluorine, chlorine, I could keep going,

And it is the case that generally speaking

at room temperature, they will be in a gas form

and they will not conduct electricity well.

These things in blue we've talked about in other videos,

The people who made this periodic table of elements

'cause then you could view them as a subclass of nonmetals

They don't tend to form any of these bonds.

and the reason why this periodic table of elements

has different colors is that there's subclassifications

but generally speaking, all of these things

of conducting electricity, being malleable,

because they have some properties of metals

But generally speaking, if you know whether

the things reacting are metals or nonmetals,

you can oftentimes predict what type of bond

So for example, if I have a bond between a metal,

what type of bond do you think is going to form?

and a nonmetal, and we saw an example of that

say a metal like sodium, and then a nonmetal like chlorine,

we saw that that chlorine will swipe an electron,

then the chlorine atom becomes a chloride anion,

and then the sodium atom becomes a sodium cation

and then they become attracted to each other

Now what if you were to have a nonmetal with a nonmetal?

Well we saw as an example in that first video

where we say well what happens if oxygen bonds to oxygen?

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Predicting bond type (metals vs. nonmetals) | AP Chemistry | Khan Academy

obvious

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