1. Write a short note on molecules.
Answers
Answer:
A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms. The atoms of certain elements readily bond with other atoms to form molecules. Examples of such elements are oxygen and chlorine. The atoms of some elements do not easily bond with other atoms. Examples are neon and argon.
Answer:
An English chemist, John Dalton, experimentally found that matter is made up of very small particles called molecules. Two aur more atoms are combined to form a molecule. A molecule can either be made up of the same type of atom like the molecule of oxygen (O²) and molecule of hydrogen (H²) a different types of atoms like the water molecule (H²O) and carbon dioxide molecule (CO²) etc.