Course description

Atoms and molecules are the fundamental building blocks of matter. An atom is the smallest unit of an element that retains its chemical properties. It consists of a nucleus made up of protons and neutrons, with electrons revolving around it in specific orbits. When two or more atoms combine through chemical bonds, they form a molecule. Molecules can be made of the same type of atoms, like oxygen (O₂), or different types, like water (H₂O). These combinations determine the physical and chemical properties of substances. Understanding atoms and molecules is essential to grasp how matter interacts, changes, and forms everything around us.

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