
A molecule is a group of atoms held together by chemical bonds. Molecules can exist as a distinct particle, or as a part of a larger chemical structure. Examples of molecules include water (H2O), carbon dioxide (CO2), and proteins.
A molecule is a group of atoms held together by chemical bonds. Molecules can exist as a distinct particle, or as a part of a larger chemical structure. Examples of molecules include water (H2O), carbon dioxide (CO2), and proteins.