solids

Now we will discuss solids.

Solids have different structures, which is the crystalline structure in

the amorphous structure.

Within the crystalline structure, there are three, like different one.

So there's molecular, ionic and atomic.

And with the crystalline structures you're gonna see a low

melting point, poor conductivity and more of like soft solid,

such as sugar.

Whereas a more fish structures are very random.

With their molecular arrangement, as you can see in the

image and amorphous structures would be things like glass, rubber

and wax.

And when they break, they're gonna break into like random

pieces. Whereas sugar would break into like the scene sciences,

we will now discuss thermal expansion within liquids.

As you can see here, there are two bridges with

expansion joints, which allow the bridge is to be more

flexible when they need toe expand or contract.

So on a hotter day, the joints would expand further

apart because it's allowing the bridge to become more flexible

as it's hotter and the um, particles within the bridge

begin to heat up and expand.

Where I was on a colder day, the joint would

become closer together because they don't need as much flexibility

and to move as much so the joints provide flexibility

and accommodate to the movement that the bridges would need

to make without, like, expanding and changing the form of

the bridge.

And finally, we have gases in the image shown you

have carbon tetra fluoride, which is a non polar molecule

that exists in a guess.

So the structure is symmetrical, which is like the four

florets, and that makes the molecule non polar because the

polls cancel each other out since there's an even amount

of them.

Whereas if you had CF five, which would be methane,

it would become puller because there's not enough to cancel

each other out.

However, since, um, carbon tension, fluoride is non polar.

They don't have the positive and negative charges that would

make them have a strong attraction toe other molecules.

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