5 Periodic Tables We Don't Use and Why 

What we all need to recognize is that Mendeleev actually invented the Excel spreadsheet.

The astronomers' periodic table: hydrogen, helium, and everything else they call "metals".

Unfortunately, by the time Alexandre-Émile Béguyer de Chancourtois finished telling people his name, they'd lost all interest in hearing about his Telluric screw.

Dear god! Number 3 I have no idea if he said that name right but you win

Another really cool thing that comes up in radiochemistry (which is chemistry, but with super-heavy or radioactive atoms) is that really large atoms (actinides) actually have electrons moving at appreciable fractions of the speed of light, deforming orbital shapes and significantly altering chemical properties. In fact, arranging the periodic table to group electrons (the "standard" periodic table) generally also groups elements by chemistry, since valence electrons usually are the ones that form the bonds. But this isn't true for the actinides. Because of the deformed orbitals, chemical bonds form very differently, and they behave very differently, breaking periodicity. This has led radiochemists to propose another table arrangement based on chemistry trends.

I know this is lame but I love y'alls diligence in citing your sources

Alexandre-Emile Beguyer De Chancourtois.Mumbling to himself, "If I can't get this table to make sense, I am screwed.WAIT!"

For transition metals, the highest D shell electrons are also considered valence electrons.

I like the left-step table the most. I actually think it would make more sense for us to use that one.

"Alexandre-Émile Béguyer de Chancourtois" Ok, guys and gals, let's take a minute to admire and pay attribute to Michael and Scishow.

Table of elements organized by how much I, personally, like each element

Holy crap the left-step one is actually awesome

What do you do with a dead chemist? Barium! When I heard Oxygen and Magnesium were dating, I was like OMg! So sorry, I wanted to tell some chemistry jokes, but all the good ones Argon.

Oh damn, that left-step is nice.

For Nuclear physicists there is also the chart of nucleotides which works on similar principals except built around the configuration of the nucleus yet another example of the many ways people categorize things. The key to keep in mind should be that our categories are never absolute take the periodic table where as you go down the periods the elements start behaving strangely as the electron valence shells become increasingly relativistic. Another example is plate tectonics if you consider everything to be plates not just the continental material swap out the idea of plates for oceanic crust for the tops of mantle convection cells and treat the continents as buoyant rafts of rock and the way "plates" behave suddenly seems far clearer. For each pattern one representation will bring it to clarity but it comes at the expense of the other dimensions of complexity to the world around us.

4:37 close enough. You deserve an award for even trying^^

What always gets me is that all these chemists prior to the 20th century had no idea how any of this worked. Until you understand protons and valence electrons it's all just magic.

4:36 Can we just appreciate the flow Micheal has when saying this name? Smooth as liquid gallium m8

+SciShow It has been a long time since I last did chemistry but the couple of minutes after 0:55 brought it all back. Fantastic. Concise.

Different Elements: Exist French guy: "Screw" that

I really like the left step table but I think it would be even better if each orbital block was shifted up by half an element so that the shell connections where more clear

That was an astounding effort in pronunciation. It was wrong but glorious

Anyone else notice the periodic table at 0:23 is not only out of date, but also has Ti twice, and a new mystery element with the symbol n?

Also cool is that in Chinese, the characters for the elements include a compound that signifies whether it’s a gas, a metal etc. The left part of the character tells you its state and the right part which element it is.

2:36: The invention of the periodic table is credited to both Dmitri Mendeleev and Lothar Meyer, who discovered it independently.

Darn left step table would have made my a level chemistry exams much simpler. I lost a lot of time working out the shells.

Well written and produced show. Lots of info presented wonderfully!

Thanks for sharing the sources. Very helpful.

Best information-packed explanation I have seen i a long time!

Whoooooooo the year of periodic table!!!!

7:20 "When read from top to bottom and left to right, it gives the exact order in which electrons fill up an atom's available energy shells." 10% or so of the elements beg to disagree. (Chromium, silver, and friends, in case that's unclear.)

5:33 HEY! ...I'm a geologist... and YES! it's a science, a VERY important SCIENCE!

Memorization Technique: s p d f = super.pdf

Good work. I thoroughly enjoyed this video.

thank you for clearly and simply explaining everything i have questioned about the periodic table!! ❤️📊

Gosh I like Michael.

Nice work, clear, and paced well. (Taught chem and the periodic table for more years than I care to count!)

7:46 evolution of the pacifier

Love the back to basics content

The best thing about this video - I finally understood what potassium is. In my language it's "kālijs" which co responds with the "K", so I didn't know there is another name :D

elements are pretty awesome to be so organized, this needs to be recognised

Welcome back Michael where have you been I enjoy your videos peace 👍🏻

brilliant video and thanks so much. I am playing catch up from very poor schooling as a kid, so vids like this are AWESOME. Keep em comin :-)

Hmm at 8:05 where it talks about the energy shells. I thought by Aufbau Principle you will fill 4s first before 3d?

8:56 that’s my professor!

Work of art ! Awesome

I'm always periodically checking this table to make sure I'm on the level!

Used to watch this waaaay back. Saw the thumbnail with Michael Aranda and got myself a real surprise that it was uploaded 20 hours ago - and not like 6 years ago.

Oh god, just looking at that spiral table is overwhelming. Wow, I am SO glad that it's not actually being used

I’m taking the chem sat test on Saturday and this helped me so thanks

6:55 that roast though xD

Wow it's been such a long time since I've used periodic tables!

nice work, thanks

Good presentation, thanks. You left out Walter Russell's periodic table which also predicts several elements not now known.

@scishow you should've mentioned Dobereiner's Triads and John Newland's Law of Octaves as well...These two were also landmark efforts in the arrangement of elements in periodicity

The OG Periodic Table: Water, Earth, Fire, Air.

5:04 I didn't know "So-on" was an element.

Good episode. Brings me back to Chem 111.

What about the element of surprise? Which periodic table is that element in???

I thought it said "Argonising". That would've also been very interesting.

In order for certain new technology to be expressed, or to be released, there has to be a willingness to receive it. And this requires both the change in the collective consciousness but it also requires that there are certain scientists who are willing to question what most scientists are currently not questioning, including materialism. Now, just as a concrete example here, you have the whole concept of free energy. This can be explained actually in terms of what is currently known by quantum physics. You have observations made by quantum physicists in bubble chambers, that you can have a state where there are no particles, suddenly one particle appears, divides itself into several particles, they collide again and then disappear. There have been some scientists who have been willing to speculate that, beyond what can be observed even at the subatomic level, there must be some kind of energy field, some call it a quantum field, some call it a ground state, whatever they call it, but it has basically been proven by quantum physics, that there is some state beyond the physical material realm. And in that state there is energy. And that energy can then enter the material realm and become physical matter. If you take this and put it together with a big bang, you can see that, is it actually logical that all of the matter and all of the energy that is now in this huge universe was compressed into something called a singularity? Whatever that may be. Is this really logical? Obviously, all of the matchup could not fit in there. But could the energy actually fit into a single point? Is it not just as logical to say that there was an event where energy from a different realm entered the material frequency spectrum. And this means that all of the matter that you see in the world today is actually created from energy. This was proven by Einstein. And that energy must have come from somewhere, and what has now been proven for those who are willing to see it by quantum physics, is that that energy came from another realm. It entered the material world, the physical realm from another realm. Well, is that not free energy? Is it not thereby proven that the entire world is created by free energy? So does that not mean it is also possible that technology could be created, that would be able to, so to speak, channel the energy from a different realm into the material realm, where it could then be used to perform physical work or at least create electricity that could power machines that perform physical work. This is perfectly in line with what has already been discovered. See, what you have right now is, you have a state of technology, which is a reflection of the collective consciousness and the collective consciousness does not really fully accept the existence of another realm. That is why as we have said humankind has become a closed circle, a closed system subject to the second law of thermodynamics. That is why the technology you have today, the energy sources you have today, you think that the only way to provide energy is to either burn some kind of fuel, or split the atom, and free the energy that is already in the material realm. But this is simply a certain mindset that is based on an incomplete understanding of how the world works. As I said, quantum physics has already proven that the world is created by energy from another realm, and therefore, there is naturally much more energy in that realm and it is a matter of raising our view of the world, our understanding of the world, raising the collective consciousness until we can grasp what that other realm is like, and therefore be able to receive the technology that can make use of the energy that is there. It may be not so constructive to talk about free energy, but it is free in a sense that there is no cost, there is nothing that needs to be burned or consumed in the material realm in order to harness this energy and therefore, we might call it a different name and many different names could be suggested.

Now that you show them, I remember seeing #4 and 5 in high school.

You missed Gil Chaverri's Periodic table which its arrangement is based on the electronic structure of the elements, which allows for the placement of the lanthanide and actinide series in a logical sequence according to their atomic number.

The first periodic table you show has Thallium (81) marked Ti (TI) instead if Tl (TL). Titanium is angry about the impostor.

I think I finally understand it now..lol, goodjob!

alexander WHAT!?!

Nice video we really liked it. When it got to the blue and yellow electron orbital shells we thought “what?!!!” :’-) it really helped to understand the left step table.

Metallicity of element blocks: p

WOW!!! wish i knew about left step table when i was in college WTF PROFESSOR !!

4:37 He did a lot better than most people must of resulted in a lot of outtakes.👏🏾👏🏾👏🏾

Wow good timing

7:10 The Periodic Table V2.

4:38 impressed

I understand now more about the periodic table than I did in highschool. Amazing!

What I like about the periodic table is that people don’t realize it’s condensed

And this video might be the first time on YT that somebody pronounced Mendeleev’s name correctly!

That left-step table might help me with electron orbitals coming up soon. Thanks!

Good explanation...you know your (chemistry) stuff...

The free one from Oscar Mayer is the best. It includes elements like bolognium. :)

3:01 The atomic mass is actually calculated by a weighted average of the different isotopes of that element. Which, I grant you, is technically what you said, but I felt like it should be clarified. (with the notable exception of Carbon which chemists have "decided" to have an atomic mass of 12 for various reasons.)

I have a chart of the nucleotides (isotopes of every element) and that thing is about 5'×10' and each square is only about a cm across

In Costa Rica we learn about the “Gil Chaverri periodic table” created by a Costa Rican Chemist. Is also very useful for energy levels

great job. I'm french and I had trouble saying mr. chancourtois' name... the first time. :-) Big thumb up!

Good job on the name!

I don't know if anyone noticed, but the SciTeam got the wrong photo @5:53 - that's a homonym: en.wikipedia.org/wiki/Theodor_Benfey

Micheal is back!

Round of applause for Michael after perfectly pronouncing that French dudes name👏👏👏

The Telluric screw could have been revolutionary...that lowkey pun got me giggling.

Silver and copper have 1 electron in the valence shell making them very conductive. They can "pass" 7 electrons at once. Silver is the best conductor of electricity at earth atmospheric temperatures and pressure

Y'all really should have teamed with Periodic Videos for this

Some of those tables WE do use. It just depends who “WE” is.

This makes me reminisce about high school chemistry and accounting for mathematical errors by blaming valence electrons lol

This reminds me of the episode on maps, where there's all sorts of different ways to show the earth depending on whether you need to find out distance, proximity, or continuity. The only difference is that the map did have a "correct" arrangement: three-dimensional.

Wow can we give props to Michael Aranda for that #3 name pronunciation??? :O

4:15 "Modern chemists have discovered basically all the naturally-occurring elements, so this predictive power is less important today." And how do we know we've discovered all of them? Because there's nowhere left to put them in the table (and we now know about protons). But predicting "no more, unless the Island of Stability is more stable than thought and there's some natural process that can get there, which you'll need to talk to astronomers about" is still useful.

I can’t believe you pronounced that French name so fast!! It almost sounded like you were botching it but it was great!!

lol he totally nailed that mans name at 4:35

Gerry, another in use these days is the "Karlsruher Nuklidkarte" (Karlsruhe Nuclide Chart).

for some reason this video made me wonder: Does a vacuum have a set temperature or can it be any temperature?

I always wondered if you made contact with advanced aliens, you could show them a periodic table and start a line of communication that way bc they'd be able to recognize the pattern.