molekulisid

Molekulisid is a term that refers to the smallest discrete unit of matter that retains the chemical identity of a substance. This unit is composed of two or more atoms held together by chemical bonds. For example, a molecule of water (H2O) consists of two hydrogen atoms bonded to one oxygen atom. These atoms can be of the same element, as in a molecule of oxygen (O2), which is made of two oxygen atoms, or they can be of different elements, as in a molecule of carbon dioxide (CO2), composed of one carbon atom and two oxygen atoms.

Molecules exhibit distinct physical and chemical properties that are different from those of their constituent atoms. The arrangement of atoms within a molecule, known as its structure, significantly influences these properties. Intermolecular forces, the attractions between different molecules, also play a crucial role in determining the bulk properties of substances, such as their state of matter (solid, liquid, or gas) and boiling points. The study of molecules, their structure, properties, and reactions is a fundamental aspect of chemistry.