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Answer: The total number of atoms that make up a molecule is known as atomicity. Simply put, it refers to the number of atoms in a molecule. Each molecule of oxygen, for example, is made up of two oxygen atoms. As a result, the atomicity of oxygen is 2. Atomicity is sometimes confused with valency in older contexts.
One nitrogen atom and three hydrogen atoms make up (ammonia). As a result, its atomicity is 1+3=4.
Metals and some other elements, such as carbon, do not have a simple structure; instead, they are made up of an infinite number of atoms that are bonded together. Their atomicity can’t be determined, so it’s usually assumed to be one.
