What is the difference between an atom and amolecule?

Answer 1

An atom consists of a nucleus (containing one or more protons and zero or more neutrons) and some number of electrons. Atoms have the same number of protons and electrons, because otherwise, you would have an ion.

A molecule consists of two or more atoms bonded together.

Atoms are single units of elements.

Molecules are agglomerations of two or more atoms (of the same or different elements). A molecule is the smallest particle of a chemical compound. Molecules are formed by atoms in a multitude of different arrangements.

- Most atmospheric oxygen forms diatomic molecules (O2), but also ozone (O3)

- One molecule of water has one atom of hydrogen and two atoms of oxygen. So-called heavy water contains deuterium, which is hydrogen that has neutrons.

- A molecule of potassium permanganate have one atom of potassium, one atom of manganese and four atoms of oxygen which give the molecule the structural formula KMNO4
An atom(element) can not be broken down by chemical processes except for radioactive decay. A molecule is made up of atoms ie H2O (water) is two hydrogen atoms and one oxygen atom. H2O can be broken down into the hydrogen atom and oxygen atom but no further.

Answer 2

An atom is the smallest unit of matter that retains the properties of an element, such as hydrogen or oxygen. A molecule is a group of atoms bonded together, such as two hydrogen atoms bonded to one oxygen atom forming a water molecule. In summary, atoms are individual particles, while molecules are composed of multiple atoms bonded together.

Answer 3

A molecule contains 2 or more atoms, e.g. a salt molecule contains one atom of sodium and one atom of chlorine.