Molecule Structure Quiz

Definition of Molecule

• A molecule is a group of atoms that are chemically bonded together.

Fields where Molecule is Interchangeable with Polyatomic Ions

• The term 'molecule' is often used interchangeably with polyatomic ions in the fields of chemistry and physics.

Types of Molecules

• A molecule that consists of atoms of one chemical element is called an atomic molecule.

Kinetic Theory of Gases

• In the kinetic theory of gases, molecules are often referred to as particles that are in constant motion.

Historical Contributions

• The famous scientist who contributed to the study of molecules in the 17th century is Robert Boyle.
• The study of molecules is known as molecular science or molecular chemistry today.
• The ancient Greek philosopher who argued that all the universe is composed of atoms and voids is Democritus.
• Robert Boyle proposed the idea that matter is composed of particles that are too small to be seen in his treatise The Sceptical Chymist.
• The French chemist who published views on combinations of 'ultimate' particles in 1789 is Pierre Macquer.
• The French chemist who is credited with creating the word 'molecule' is Jean Baptiste Perrin.

Ancient Greek Philosophers

• Empedocles imagined the fundamental elements of the universe as earth, air, fire, and water.
• Amedeo Avogadro stated in his 1811 paper that equal volumes of gases at the same temperature and pressure contain an equal number of molecules.
• The modern concept of molecules can be traced back to the work of Amedeo Avogadro.
• Aristotle accepted the concept of four fundamental elements (earth, air, fire, and water) and passed it to medieval and renaissance Europe.