A molecule is the smallest particle of a pure chemical substance that still retains its chemical composition and properties. A molecule consists of multiple atoms joined by shared pairs of electrons in a covalent bond. It may consist of atoms of the same chemical element, as with oxygen gas (O2), or of different elements, as with water vapor (H2O). Abstractly, a single atom may be considered a molecule, as it is when referred to collectively with molecules of multiple atoms, but in practice the use of the word molecule is usually confined to chemical
compounds, of multiple atoms.
it’s not art nor science it’s poesis!