Universe and its Ingredients

Let's say, auction to break one of the things. I divided it into two pieces with the maximum possible sharp and sharp knife or blade of the hand. We divided the divided parts into two parts. I divided the newly divided parts into two parts. Thus, if there is a small part of it that can be divided into one division after another, which can not be divided? It is so small that he can not be half done? Can any stage be found that there is nothing more than that? How narrow is the edge of the blade of Razor? Or how small the needle's nozzle? What is the maximum amount of objects made of small parts? See or how?

The philosophers of ancient Greece, China, and India believed that everything in the universe was made up of four elements. The four components are fire, water, soil and air. Their claim was that they can be divided into as much as they are. However, an ancient Greek philosopher Democrats went out of the way to the right information. Democrats said that if something is divided into consecutive, then it will reach such a position, then it can not be divided into smaller parts. Democrats gave the name of this smallest part of atom or atom.

To divide into Greek is called Tomos, and the Greek form of 'no' or negative symptoms is 'A'. As a result, A-tomos is meant to be something that can not be divided. This A-tomos came from today's English Atom word, whose Bengali is atomic.


Many small pieces of gold or numerous gold atoms together form a piece of gold. The numerous smallest parts of iron or iron atom together form a single piece of iron. All other substances are composed of numerous small atoms. Everything that is visible in the sky or not, everything that is made of this atom is made of this atom. The whole universe is the assembly of a small atom.

Now we know that there are more than one hundred different types of atoms. Among them, 90/91 types of atoms are available in nature. The rest have been made by scientists in the laboratory. If found in laboratories, their stability is very brief. After the formation they do not exist long, they are transformed into another atom.

There are many types around us. Most of them are composed of different types of atoms, which consist of different types of atoms. The objects that are formed by a single atom are called 'basic'. Such as gold, iron, copper, sodium, mercury etc. These hard substances are easily found in the world. There are some hard elements, they are very rare in the world; For example - molybdenum. It is rare because we do not see the use of molybdenum in any work. That's why this name may seem unfamiliar to many. Although they are rare in the world, in many places of the universe, it is not rare. Like all other substances, they have a lot of possibilities

Iron, gold, copper, tin, junk etc. are also difficult as well as gaseous or gaseous elements. Such as oxygen, nitrogen, hydrogen, neon etc. But most of the substances around us are not in the basic form, they are mixed. The substances that consist of multiple atoms are called 'compounds' or composite materials.

All of us may have heard that the water is sometimes released by writing H2O. Here H2O is the chemical formulas of water. Which means water is a composite material and it consists of two types of atoms (O) and hydrogen (H). By small (2), two oxygen mixed with two hydrogen mixes a small particle of water. This small particle is called 'molecule'.

The molecules of multiple atoms are decorated in special proportions. Some molecules are made up of simple and simple decorations; For example, water molecules. Only three atoms are formed in a special way by forming molecules of water. There are some molecules in which the decorations are very complex. For example, there are many molecules in living organisms that are made up of more than 100 quantities of atoms. Hundreds of atoms form a large molecule that is decorated with special decorations.

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