What is an atom?

Julia Chmykhalo
Julia Chmykhalo
January 25, 2015
What is an atom?

The word "Atom" has several meanings. Basically, it is used in chemistry and physics to denote the smallest indivisible particle of which the molecules of various substances are composed. Atoms have microscopic masses and sizes, they are not distinguishable without special equipment and act as the main carrier of the properties of any substance.

What is an atom and what properties does it have?

For many centuries man has been interested in the structure of the universe and all objects around it. After reaching a certain level of technological progress, the creation of electron microscopes and other ultra-precise equipment, it was possible to prove that an atom is the smallest particle of which any substances consist. Despite this, there are many theories that suggest the existence of smaller particles that science is not yet able to recognize due to the imperfection of existing technologies.

The atom itself consists of electrons and an atomic nucleus (which is about 99.9% of its mass).In cases where the number of electrons in the orbits of an atom corresponds to the number of protons (positively charged particles) inside its nucleus, it has a neutral electrical effect. Otherwise, if the volume of certain particles is larger or smaller, it will have a positive or negative charge and will be called an ion.

Atoms of various kinds, which are connected to each other by means of interatomic bonds, constitute molecules of any substance.