Atomic Hook-Ups - Types of Chemical Bonds: Crash Course Chemistry #22

Atoms are a lot like us - we call their relationships "bonds," and there are many different types. Each kind of atomic relationship requires a different type of energy, but they all do best when they settle into the lowest stress situation possible. The nature of the bond between atoms is related to the distance between them and, like people, it also depends on how positive or negative they are. Unlike human relationships, we can analyze exactly what makes chemical relationships work, and that's what this episode is all about.

If you are paying attention, you will learn that chemical bonds form in order to minimize the energy difference between two atoms or ions; that those chemical bonds may be covalent if atoms share electrons, and that covalent bonds can share those electrons evenly or unevenly; that bonds can also be ionic if the electrons are transferred instead of shared: and how to calculate the energy transferred in an ionic bond using Coulomb's Law.

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!

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Table of Contents
Bonds Minimize Energy 01:38
Covalent Bonds 03:18
Ionic Bonds 05:37
Coulomb's Law 05:51

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[crashcourse]

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! 

[generic_flower]

Ive decided to take AP Chem.
I've signed up for death.
I've decided to take AP Comp Sci at the same time.
I've signed up for a very painful death

[Madirlblue]

Other people are complaining that you talk to fast in comments but I personally am incredibly grateful- there are so many ancient professors this website and in my lectures droning on for hours on these subjects. Thank you. The way you structure things keeps me entertained and safe from failing midterms

[cassandratodd]

I have finals tomorrow, so I'm watching as many as I can
I'm still screwed

[EnderAnimals]

everyone else: "he talks to fast"
me, speed studying: *watching on 1.75 speed, with CC, losing my mind but its working*

[KasraChehrazi]

Everyone please stop saying talk slower... it is called crash course it is supposed to go fast, if you want it to be slow click the gear icon then hit speed and press .5, not .25. (WARNING: He will sound drunk.)

[zetlaux]

To those saying he is too fast: some people actually think and operate at that rhythm, and finding something that delivers at their is a rare find. You can always hit replay and watch it again. Plus, the amount of chemistry he covers in under 10 minutes is super impressive. This should feel intense. This is weeks or months of college in a few minutes.

[esmeraldagonzalez]

When hank said "atoms are a lot like us" I thought "atoms are us"

[kaiyatiwari]

crash course rlly said gay rights with Bert and Ernie

[rkid]

At 0:13 they had Bert get married to Ernie on June 26th which is funny since that's the day in 2015 that the Supreme Court legalized same-sex marriage in the US but this video animated years before.

[madalynmartin]

As a student in college, these videos have been so extremely helpful to re-familiarize myself with information I learned years ago in high school. Thank you SO much for providing these brief, clear, and interesting videos! They're saving my grades. 

[shanewilliams]

Hot nerdy vampire girl in your chemistry class, it gets intense *shows picture of Marceline*😂😂😂😂😂👏🏽

[Tionaintown]

I'm here because I didn't pay attention in chemistry class.
And my exam is tomorrow.

[ladyrage]

reading through the comments like "none of you know what 'crash course' means, do you?"

[andyshelton]

I'm doing A level chemistry in the UK at the moment and although I've learnt a lot of this, I was watching this to gain a higher level of understanding before my test. I had so many epiphanies during this video, I now get how all the topic link! Thank you so much!!

[annyargh]

My bio professor just linked this for our lesson this week, jfc. Why am I paying out the butt for school when apparently I can just watch Hank Green teach me things for free?

[sameersheikh]

they even included a Bert loves Ernie joke. Wow. XD.

[classiseverythingme]

Awww thank you....this Crash Course truly saved my grade after struggling for WEEKS. You've fully explained this concept very effectively and I soooo appreciate it. AND you're HILARIOUS!!!

[guitaro]

This is actually more complicated than a lecture from school.

[joeey]

And that was a very discreet TFIOS reference I saw there...