MOLECULE Meaning and
Definition
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A molecule is a fundamental unit of matter that consists of two or more atoms chemically bonded together. It is the smallest particle of a substance that still retains its chemical properties and can exist independently or can combine with other molecules to form larger structures. Molecules play a crucial role in the composition and behavior of all substances in the universe.
Each molecule is identified by its unique combination of atoms, which determines its molecular formula. This formula provides information about the number and types of atoms present in the molecule. For instance, water molecules consist of two hydrogen atoms and one oxygen atom, giving it the molecular formula H2O.
Molecules can vary greatly in size, complexity, and stability, ranging from simple diatomic molecules such as oxygen (O2) and hydrogen (H2) to highly intricate and massive molecules like DNA. The shape of a molecule is dictated by the arrangement of its atoms and the bonds between them, affecting its physical and chemical properties.
Molecules interact with each other through various types of chemical bonds, including covalent bonds, ionic bonds, hydrogen bonds, and van der Waals forces. These interactions govern the behavior and properties of substances, such as their melting point, boiling point, and solubility.
In summary, a molecule is a fundamental building block of matter, composed of two or more atoms chemically bonded together. Its unique arrangement and composition determine its distinct properties, making molecules essential in understanding the composition and behavior of substances in the natural world.
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A small mass; a very minute particle of matter; one of the elementary particles into which all bodies are supposed to be resolvable.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
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Other Common Misspellings for MOLECULE
Etymology of MOLECULE
The word "molecule" derives from the Latin words "moles" meaning "mass" or "barrier" and "cula" meaning "small" or "little". It was coined by the British chemist William Whewell in 1811, who used the term to refer to the smallest particle of a substance that retains its chemical identity during a chemical reaction. The term was further developed and popularized by the French chemist Jean-Baptiste Dumas in the mid-19th century.
Similar spelling word for MOLECULE
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