Molekule

Molecule is the smallest fundamental unit of a chemical compound that can exist independently and retain all the chemical and physical properties of that compound. It is composed of two or more atoms chemically bonded together. These atoms can be of the same element, as in the case of oxygen (O2), or of different elements, as in the case of water (H2O).

The atoms within a molecule are held together by chemical bonds, which are forces of attraction. The most common types of chemical bonds are covalent bonds, where atoms share electrons, and ionic bonds, where atoms transfer electrons. The arrangement of atoms and the types of bonds in a molecule determine its unique structure and properties.

Molecules are the building blocks of all matter. They are constantly in motion, vibrating and colliding with each other. Their behavior and interactions govern macroscopic properties of substances, such as their state (solid, liquid, or gas), melting point, boiling point, and reactivity. Understanding molecules is fundamental to the study of chemistry and many other scientific disciplines. The concept of the molecule is crucial for explaining chemical reactions and the composition of everything around us.