What is a molecule?
If you do not already know what a molecule is, thenthis article is just for you. Many years ago people began to guess that each substance consists of individual small particles. As it was proved a little later, these particles are called atoms. As a rule, atoms can not exist separately, so they combine into molecules. Both atoms and molecules are very small. For example, in the dust particle there is a huge number of atoms.
Despite the fact that substances are the mostvarious, the number of atoms is still limited. Atoms are combined among themselves in various ways, as a result of which molecules of various substances that surround us form from those very atoms. This gives us a complete answer to the question of what the molecule consists of.
Also you may be interested in what is lessmolecule. There is an unambiguous answer to this question. The molecule may contain two or more atoms, which are linked together by a covalent bond. It is the atom and is the smallest particle in comparison with the molecule.
Properties of molecules
Let us consider the properties of a molecule by the example of thissubstance, like sugar. If you grind it into the smallest grains, there will still be many identical sugar molecules in its composition. Each grain will preserve all the properties of the substance. Even if you break sugar into individual molecules, for example, dissolve it in water, the substance will not disappear anywhere and will exhibit its properties. This can be checked by trying that the water has become sweet. Of course, if we continue the crushing of sugar and further, destroying the molecules or taking several atoms from them, the substance will be destroyed. It is worth noting that the atoms will not disappear, but will become part of other molecules. Sugar itself as a substance will no longer exist and will turn into another substance.
There are no eternal substances. Just like there are no eternal molecules. However, atoms are considered to be almost eternal.
Although the molecules are very small in size, theirThe device can still be determined using various chemical and physical methods. Some substances exist in pure form. These are substances that contain molecules of the same species. If in the composition of the physical body there are different kinds of molecules, in this case we are dealing with a mixture of substances.
To date, the structure of the molecules of matterare determined by diffraction methods. Such methods include neutron diffraction, as well as X-ray diffraction analysis. There is also an electronic paramagnetic method and a method of vibrational spectroscopy. Depending on the substance, its state, and this or that method of molecular analysis is determined.
Now you know what is called a molecule and what it consists of.