Materia y tabla periódica I_
Ana Carolina Campos Alba · 1,947 words · 10 min read · EN

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Okay, we've already talked a bit about matter in the introduction to the infographics on this topic, so let's make some general clarifications. Here we have the classification of matter. Let's look at these examples and how we can see two families: pure substances and mixtures. What happens when we talk about pure substances? Well,
each one has a fixed composition and specific properties. When we talk about mixtures, these are composed of two or more pure substances. What happens when we have, for example, pure substances? Yes, we also have chemical elements and compounds. In the case of chemical elements, we have, for example, sulfur, copper, and gold. These are also
found on the periodic table, which we know. A chemical element is a type of matter that cannot be subdivided into two or more pure substances, and there are more than 102 known elements. Approximately 92 of these elements exist in nature. For example, carbon is almost pure carbon, and copper is found, for example,
in our homes. We see electrical wires; a long time ago, the pipes were made of copper, but before that happened, they started changing them because they reacted with the water, obviously. They started releasing substances, and those substances were making people sick. The other one, the parrot, well, it's used in jewelry. The gold ingots, for example, that
are in the Bank of the Republic, represent the nation's money. There's also aluminum, which is used to build elements, like the foundations of houses. This aluminum is also very malleable, so that helps in the smelting and construction process of other products. It's in the section on chemical elements, so it's important to know that they are
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