Meaning of Atom

What is Atom:

An atom is known as the minimum unit of a substance, which makes up all common or ordinary matter. If the atoms of any matter are able to divide that matter, it could be destroyed.

Each thing, substance or matter has different amounts of atoms that make it up, however, atoms are made up of even smaller particles such as subatomic particles, called protons, neutrons, and electrons.

Inside the atom, we can find the protons and neutrons in its central part, that is, in the nucleus, the electrons are in a kind of orbit around that central part called the nucleus, and these in turn weigh less than the electrons. protons, and neutrons.

The unity of several atoms with each other results in the formation of molecules that after subatomic particles, and the atom itself is the smallest unit of matter.

See also:

  • Electron
  • Neutron
  • Subject
  • Properties of matter

In chemistry, it is said to be the smallest part of an element that can take part in a chemical reaction. During chemical reactions, atoms are conserved as such, they are not created or destroyed but they are organized differently creating different bonds between one atom and another.

See also Chemical reaction.

Due to the great chemical scholars who managed to demonstrate and discover that any object, thing, solid, and even liquids, and gases themselves, can be decomposed into different elements, such as the example of water, since each molecule of this It is made up of two hydrogen atoms, and one oxygen (H2O).

See also Molecule.

Despite all this, it should be noted that not all matter in the universe is composed of an atom, since dark matter constitutes more of the universe than matter, and this is not composed of atoms but of particles of a currently unknown type.

Finally, in relation to its etymological origin, the word atom comes from the Greek, which refers to “that which is inseparable or that cannot be divided”.

See also Nuclear energy.

The atom can be referred to in other areas such as, for example:

Atom in philosophy

The doctrine of atomism, defended by the philosophers Leucippus, and Democritus of Abdera, reveal that reality is made up of atoms, being small and indivisible particles.

On the other hand, according to philosophy, the theory of the atom is characterized by the immutability of the elements and of the species, which means that fire will always be fire, when we see it and when we don't; that water is always water, and so on.

Dalton Atom

John Dalton, presented the first atomic model, which postulated that matter is made up of small, indivisible and indestructible particles, called atoms. On the other hand, atoms have their own weight and qualities.

Thomson's atom

In the year 1897, Joseph John Thomson discovered the electron, which deduced that matter was composed of a positive part, and the other negative. The negative part formed by electrons, immersed in a mass of positive charge.

Later, Jean Perrin, proposed a model in which the electrons were on the outside, causing the positive charge.

Neutral atom

A neutral atom is characterized by a lack of electrical charge. Electrons have a negative charge and protons have a positive charge, in conclusion, a neutral atom has the same number of electrons as protons.

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