Atoms are the basic units of chemical elements. Atoms themselves are made of of positively charged particles called protons, negatively charged particles called electrons, and neutrons which have atomic weight but no charge.
Elements are chemical substances composed of only one type of atom, whereas substances composed of multiple types of atoms are called compounds. Molecules are the basic units of compounds and are made of two or more atoms. Matter made of multiple molecules is called a mixture.
Deeper Knowledge on Atoms
Charge and Coulombs
How force is exerted in electromagnetic field, measured in coulombs
Broader Topics Related to Atoms
The composition, structure, and transformations of matter