Question

What is Atomicity and Valency?
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Answer 1

Answer:

• The combining capacity of an atom is known as its valency. The number of bonds that an atom can form as part of a compound is expressed by the valency of the element.
• Atomicity can be defined as the total number oqf atoms that composes a molecule. Simply put, it is the no of atoms present in a molecule. For example, each molecule of oxygen is composed of two oxygen atoms. So atomicity of oxygen is 2. In older contexts, atomicity is sometimes synonymous with valency.

• Examples:

1. Inert gases like helium, neon etc are monoatomic
2. Hydrogen, Oxygen is diatomic
3. Ozone is triatomic

Phosphorus(P4) is tetratomic

Answer 2

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Atomicity is the total number of atoms present in one molecule of an element or a substance.

The combining power of an element, especially as measured by the number of hydrogen atoms it can displace or combine with.

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