The three forms of matter, and this is something known to everyone on this planet; it is also one of the most basic scientific notions either, and the article either be an element or a set of elements. The element is a substance consisting of one type of atom.
The Earth contains ninety-two natural elements. These elements begin with hydrogen gas and end with the radioactive element. Gas is a form of matter; its constituent atoms are poorly interconnected; the distance between molecules is much greater than that in liquids and solids. As a result of the distance between these constituent molecules, these gases have a unique property It does not have a fixed shape or size; it takes the form of the container in which it is placed and its size. Also, because of this distance, the gas is compressible, so the gas that is in a jar, We can put it under pressure so that it can be placed in a smaller container for two or three liters, for example.
The most famous gases after oxygen and hydrogen in the public is helium; it is the second lightest gases on earth, consisting of the fusion of two atoms of hydrogen in special conditions and a small mass difference, and turns into radiation energy, and this happens only in the stars usually. Helium is found at 24% in this vast universe; only about a quarter of this universe is composed of helium. Helium, as I mentioned earlier, is a light gas with proton nuclei and the same number of neutrons.
Question Now Where is helium gas? It is an inert gas that does not interact with any element in nature, so it exists in a monolithic form. Since it is also a lightweight gas, it does not stay long in the atmosphere; it rises to outer space. .
Since helium is formed under special conditions, these conditions are often available in the heart of the star. It uses special hydrogen fuel to burn it into helium. Helium is concentrated in the heart of the star because it has a high atomic weight compared to hydrogen.
After this helium in the star as a result of this nuclear fusion will remain in place in the center of the star, for example? In fact, the elements are constant in the heart of the star until its death, and after a certain stage of the life of the star, the force that influences the atoms of the present elements (hydrogen and helium) becomes much larger. This force enables the helium atoms to merge, forming heavier elements than helium. Three atoms of helium to form a single carbon atom with a difference in mass, turning into energy, part of that energy that our sun shines.
