The Periodic Table: Crash Course Chemistry #4

Hank gives us a tour of the most important table ever, including the life story of the obsessive man who championed it, Dmitri Mendeleev. The periodic table of elements is a concise, information-dense catalog of all of the different sorts of atoms in the universe, and it has a wealth of information to tell us if we can learn to read it.

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Table of Contents
Dmitri Mendeleev – 0:45
Mendeleev’s Organization of the Periodic Table – 2:31
Relationships in the Periodic Table – 5:03
Why Mendeleev Stood Out from his Colleagues – 7:09
How the Periodic Table Could be Improved – 8:28

More info. about the cylindrical periodic table of elements: Support CrashCourse on Subbable:


Talha Siddique says:

Watching in 2018

Marin Yamini says:

Anybody else cramming for their Science midterm? lol

StereoSoundAgent says:

What I love about Hank Green, is that he will always be himself.

oriana garrido says:

What if I literally made a table with the periodic table’s shape and just printed the elements on top?
That would be cool
Tho I would have two tables

Gordon Goodman says:

Wait what? Is this the ”dust of the earth” from which God created man as described in Genesis? Amazing stuff.

Ágnes Madaras says:

Thanks, really helped me! Can you make an episode with the Chart of the Nuclides? I am curious to watch it from your scientific view.

Office Mercs says:

copernicium wasn’t named yet. lmaoo i bet your i7’s ran at like 1 ghz then too lol.

MysteryMan says:

A neutron walks into a shop and says,”I”d like a coke.”
The shopkeeper serves up the coke.
“How much will that be?” asks the neutron.
The shopkeeper replies, “For you? No charge.”

Cristo Philip says:

Water was going out with Sodium. Water texted:

Water: Wanna invite Potassium over for dinner?
Sodium: K

Prosperous Gurdian says:


Anahi Serrano says:

very good video is so funny 🙂

Zeenat Khan says:

I love crash course

Dylan Krip says:

This is cool


Did you love chemistry well i used to like it 2 years ago and i didnt understand it because i still 8 or 9 or 10 years old

Mingyu_Jeong 20251140 says:

this video is not about his mom! fools!

Avinash Binand says:

I’m out of chemistry jokes. I should Zinc for a new one.

creamii says:

How often do chemists study the elements?

Cameron Gray says:


Avinash Binand says:

The lab smells like rotten eggs?
You must be sulfuring.

Victoria Vazquez says:

i did not learn this in science! He(my teacher) just said this is called that and this is called that and now lets move on to something else pretending you even KNOW what the heck is going on!

sesha chary says:

Very nice thank you

Darren criss Fans says:

Anyone studying for a chem final

CRAZY BoyZ says:


Cyril Chacko says:

amazing mother

Michael Mayhem says:

Most Important Table? I think you forgot the Knight’s RoundTable

Sebaninja says:

They need to update this video because of the new elements.

Fairytale Overworlds says:

So the guy who invented the Periodic Table didn’t believe it atoms. I… think I got it.

Aleksandra Ivanchenko says:

You are so funny!

Avinash Binand says:

I would never try to poison you. Now eat your Pb and jelly sandwich.

Gurleen Deol says:


Declan Walls says:

Great video…….but my class were wondering do you ever breathe??????

Michael Weber says:


Manuel Oribe says:

Weren’t they 118 elements? They only show 115.

Captian Railroaddude says:

I love this!

Shashvat Shukla says:

The first 5 minutes were amazing

georgehenna says:

Magnesium and Oxygen went on a date. O Mg

Haarballieee Ilse says:

My brain hurts. Thank you.

tintin tintin says:

can you please explain planks constant and de breigs wavelengths

Justin S. says:

I tried learning this through wikipedia and all I can say is THANK GOD they have a crash course vid on this

Tomas Gregan says:

Well the noble gases are not completely unreactive, that’s why their name “inert gases” was changed into “inert gasses”.

ImperialOneWithThe Force says:

Love this series

Avinash Binand says:

What do you do with a sick chemist?

If you can’t helium and you can’t curium, you might as well barium

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