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Today we are going to discover chemical elements hidden in the components of electronic waste. Plus, we're going to understand why they're here and why it's not a good idea to leave All that rubbish lying around in nature. And who we have with us in today's video, Which debuts in environment week, is Samsung, which is always looking for new solutions To the problem of electronic waste. They even have a program called Samsung Recicla And they offer free and ecologically correct disposal for electronic products and Appliances of any brand. It is very cool. But first of all, what exactly do electronic Waste mean? Is it that trash can we have inside the computer, when we delete files? Of course not? It's every device that needs electricity to work. Televisions, For example, or runs on batteries, like a notebook. This one even doesn't have the Battery anymore. And if we're saying it's electronic waste, it's because this material Has reached the end of its useful life and needs to be disposed of somehow. There Are many examples, it can be a cell phone, a notebook, a battery, a washing machine, A refrigerator. Practically everything you're seeing here from this collection of The Manual do Mundo that has already turned into electronic waste. And Samsung recycles All of these, even the large ones that are sometimes even taking up space in your House. And more than that, right? They can harm the environment if they are not Disposed of properly. Many electronics have heavy metals. Lead, mercury, cadmium… And these metals can do a lot of harm to nature and to humans too if they contaminate the soil or some water source. That is why it is important to dispose of these residues correctly. One cool thing about Samsung Recicla is that it has an Eco Troca program, in which You correctly dispose of an old product and get a discount on a new Samsung device. But let's get our hands dirty. I mean, hand in hand on the plate and start finding the chemical elements that are Hidden here and assembling our periodic table. You are aware that the chemical elements are the basic ingredients to form everything that we know in the universe. And the periodic table is nothing more than a way for us to organize these chemical Elements in an intelligent way. For example, the first column, the first family Here in the Periodic Table, it has metals that react a lot with water. So, come On, the only rule I want to establish here is the following, I want the chemical Element that I find in these pieces to be significant for the piece. For example, It can't picking up this phone and saying it has nitrogen in it just because there's Nitrogen in the air. This is stealing in the game. Look, the periodic table has 118 elements, several are radioactive, unstable, there's no way we can find them

Here. But tell me, how many chemical elements do you think I will find? Put it In the comments, let's see if you get it right at the end. Perhaps a lot of people Are watching and remembering that there is a channel called Química Integral that Is making a periodic table with the real elements, purifying each element and managing To separate it as purely as possible, putting it in small acrylic cubes. But our Idea here is different, it is trying to understand where these chemical elements Are being used in our daily lives. Anyway, I think we should help make a little Block on the Periodic Table at the Química Integral, huh? I'll start with the most obvious chemical element of all, which is copper. This metal is very common for people to see around because it conducts electricity Very well, so there are many wires made of copper. So, I'm going to take the opportunity to remove these inductors from the motherboard That use copper and stick them on this little plate that we made with the name of The chemical element that will then be pasted on our periodic table, on this chemical element sticker album. I think it was worth a thumbs up just because of the care we had to make this laser-burned Sticker because it took a lot of work to make it with a bunch of chemical elements, you can't even imagine. Let's open an old PC here that I think has a lot of cool stuff. Let's go to another chemical element that is very common in our daily lives, which is aluminum. It's a light, resistant metal that conducts electricity well, but it's here because It also conducts heat very well, so it's often used in heatsinks. It's these pieces that serve to remove the heat from the plate. The problem is that the heatsink is a little bigger than our little figure here, it's kind of hard to cut. As I had to remove a lot of screws here, let's go to their chemical element, which Is iron. The screw itself is made of steel, but the main ingredient in steel is Iron, which is a very resistant, cheap, easy to find, easy to work metal, so we will Find it in mechanics, civil construction and a lot here in these electronics. This Cell phone is up for grabs here on the table, I think I can easily find another chemical Element in it. What I'm sure you have in here is lithium. It is a very important Metal today because it is with it that we make most of the rechargeable batteries, Not only for cell phones, but even for electric cars. The problem is that the ones I'm finding here are much bigger than our picture. But, Iberê, all you have to do Is cut that battery like you did with aluminum, right?You are  lazy… So, I think It's time for us to have a little chat here in this video. We are going to disassemble A lot of things here and many of them are very dangerous. The lithium battery, for

Example, we cannot drill or cut it because it can explode. So, we think it's cool To disassemble to be able to use the parts and everything, but you have to know what You're disassembling. There are several videos in Manual do Mundo that show us disassembling The computer, for example, and then, following these steps, you can find out. But Here's the warning, know first what you're dismantling, okay? If you don't know, Better send it straight to recycling, right? I think there's going to be a tiny Battery here, huh? Oh, it's here! One thing I had forgotten is that these coin Cell batteries also have lithium in them. So I'm going to put them both here, it's Going to be cool. By the way, speaking of battery, I discovered one more chemical Element here in the battery of this phone. It's a rechargeable battery that has Nickel in it. This is also a super important metal that goes not only in the battery, But also to coat parts and in various metal alloys, that is, mixed with other metals. Let me see if I can find something here. It's gold. Here, this metal is used to coat the terminals, the processor connections, because It conducts electricity very well and does not oxidize. Now, if you're thinking you can get rich by melting these terminals, you can't. You Would need tons of slabs to get grams of gold and getting the gold out of there is Quite difficult. We never did it ourselves in Manual do Mundo. I found another One here. It is silicon, which is used to make chips. In fact, that's why we hear So much about Silicon Valley, it's one of the most abundant chemical elements on Planet Earth, it also serves to make glass. Inside this HD there is a precious piece that we love in Manual do Mundo, which is A super magnet, a neodymium magnet, which is also a chemical element and it is down there, in the lanthanide series. In HD there is another very important chemical element. It is cobalt, which is one Of the few metals that can also be attracted to a magnet along with iron and nickel. It is important here on HD because the information is magnetically stored. I'm crazy to watch this TV. Television is something that we have to warn here that it is also not to be disassembled At home because you can take a very dangerous shock, you have to unload the television In a special way and such, you better not move it, okay? In the television transformer, which is where it generates high voltage, we find a Small piece of ferrite. And do you know what ferrite is? Iron oxide. We already Have iron, but we still don't have oxygen, which is the oxide part. The solder used to attach the electronic components to the board is made of a lead-tin alloy, and that's what we want.

Tin is also used together with copper to form bronze. Two things I think I get here. Sulfur is a super important element for rubber. It who will give the rubber hardness, elasticity. Glass is mainly made of silicon, but it also has calcium and sodium, which is what we want here now. You can prove that these two elements exist because when we put the torch on, this Yellow, orange flame comes out, which is very characteristic of calcium and sodium. And look what I found here, the chrome. It is in stainless steel, which is the material Of this piece, and it is mainly responsible for not letting the steel oxidize. I'm Going to disassemble this micro grinder that has already given us a lot of joy, but Was declared dead a while ago. Look at this here, it's a practically pure chemical element. Carbon. It's here in graphite format and its function in several engines is to take energy To the engine, but with the engine running. So, it is in contact with the rotor, Which is this piece here, passing energy. We could also easily represent carbon Using plastic because most plastics will mainly contain carbon and hydrogen. By The way, many people don't know that plastic, considering volume, is one of the things That is most recycled in electronic equipment. As much as it serves to make the Cover, the housings, the structure and not the most vital part of the electronics, It ends up being a material that is generally used more at the time of production. And besides all that, its recycling is not as complicated as other materials, like lithium in batteries. Another metal that is very common in batteries is lead. It is not at all recommended that you disassemble batteries, but we have one here That was used in the video of what's inside the battery, which the manufacturer provided us. So, we can remove a little lead without running any risk. Chlorine will be unusual. It's one of the ingredients in PVC, which is a plastic that's often used not only To make the pipes that carry water from your house, but also to cover copper wires Like the one I'm tinkering with here. In that camera, I'm going to find xenon. It is the noble gas that makes the camera flash light. A very important metal that was missing here is zinc. It is used here to cover the steel and prevent it from rusting. Gallium is a super important ingredient of some types of LED. It stays exactly in the place where it emits the light. If you've been watching Manual do Mundo for a while, you'll remember the time I melted A spoonful of gallium because that metal can be liquid at room temperature if the environment is warm.

Let's speed this up here, otherwise I'll be filling out this table until 2025. Tungsten Is the metal that forms the filament of incandescent light bulbs, this light bulb Is no longer very common, but there is a sewing machine inside, for example, which Is electronic waste. Silver is super important for photography and it is one of the ingredients of photographic film. Arsenic works together with gallium inside the infrared LED that we use in the remote Control. Including, it is a type of light that we cannot see, but the television Perceives. Inside the remote, you can also find Potassium. It gets inside alkaline batteries in the form of potassium hydroxide, which is an alkaline substance. Another chemical element in batteries, both alkaline and common, like the one I'm using here, is manganese. Phosphorus is essential for some electronic components, such as diodes and transistors, like the one I'm putting here. Neon is a noble gas super used in colored lights, here we found it in the iron light. Indium along with tin is used to create a layer that can conduct electricity on top Of the glass to the touch screens of cell phones. We can find fluoride in Teflon, that non-stick layer that the pan has, but it also Has it in the iron that I had up here, which is not easy to cut. Hydrogen is found Along with carbon in virtually any petroleum product. Our choice here, then, is Obvious. It will be the plastic. Mercury is inside fluorescent lamps. I'm going To disassemble this notebook because it's old and this type of lamp was used behind The screen. We should never break a fluorescent lamp so the mercury doesn't come Out, in this case, you can see that I'm an elephant in the crystal shop and I already Broke it when I was dismantling it, so I'm going to use this little piece here. Look At the liquid crystal, which is beautiful against the light, too bad it doesn't even Have the chemical element that we haven't found. The nitrogen we will find inside The thermal paste because it can have boron nitrite, aluminum nitrite, and the thermal Paste is used to connect the chips that get very hot on the aluminum heatsink that We have already placed here. The element boron we find in the diode, which is that Electronic component that only lets electricity flow in one direction. But there are also diodes that use germanium, so we have one more chemical element for the collection. Down here I also found a filament that has thorium, it is down there in the periodic table in the actinide series. We find beryllium inside the piece that generates microwave radiation. The problem Is that if it breaks, it can release toxic dust, that's why I'm wearing a mask and I don't recommend that you do it at home anymore. They also had two really cool Magnets that I could pull the barium out of, but I want to keep those magnets, so I'm going to take them out of a speaker that was on the television.

Titanium I could take from that sword we made, but plane parts aren't exactly eletronic waste. So, we're going to take it from white plastic, because titanium dioxide is one of The most used white dyes in the world. Strontium is a common element within the Green LED which, by the way, I also found in this coffee maker. Tantalum is used In capacitors, which are those electronic components that store energy for a while, and calcium is used in papermaking. It may sound strange, but it's full of paper tag here. Guys, I think I'm done. It is very likely that anyone who is very knowledgeable about Electronics who is watching will discover some chemical element that I have not thought Of here. But that was as far as we could get. Let me tell you. 1, 2, 3 4 5 6 7 8 9, Ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eightteen, Nineteen… Forty-one chemical elements in this electronic waste that we separated. It turned out pretty damn good, let's agree. Is that thumbs up worth it or not? I'll tell you the truth, if we hadn't dismantled it, done all this research, I would Never have imagined that electronic waste had so many chemical elements like that. Environment week is an opportunity for us to rethink some of our attitudes, and today We are talking specifically about electronic waste. But this was a key that should turn our heads to any kind of residue. Because just like electronic waste, most of the things we discard can be recycled or reused in some way. Apart from the problems that discarding anyway can cause nature and our health. So if you want to know more about Ecotroca and how Samsung can help you dispose of Electronic waste properly, take a look at the Samsung Recicla website because there Is information about this collection. And I think this video deserved a sequence, Huh? Maybe not just eletronic waste, but all waste. You could find at least 40 elements here. What do you think? Could you help me in The comments to see where I can find the missing elements, huh? There is a chemical element that I know everyone will joke about in the comments, which is uranium. And, yes, we have uranium here in the Manual do Mundo because I once bought a plate On the internet that is made of glass that contains uranium. And we even tested it with that radiation counter. I think it's worth taking a look if you made a joke about uranium in the comments, right?