Molecules are very tiny particles which, when they come together, make up matter.
Molecules themselves are made up of atoms. It is very important to know this: the energy possessed by the molecules are of two kinds, kinetic and potential.
The smallest particle of a substance that has all of the physical and chemical properties of that substance. Molecules are made up of one or more atoms.
A molecule is a group of two or more atoms that are chemically bonded together and form the smallest unit of a chemical compound with unique properties.
A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules can be composed of atoms of the same element (such as oxygen) or different elements (such as water). Molecules are the building blocks of all matter.
