The number of atoms constituting a molecule is known as its1 point(a)atomic number(b)atomicity(c)molucility(d)none

Break Down the Problem

1. Identify the key terms in the question: "number of atoms constituting a molecule".
2. Analyze the options provided in relation to the definition.

Relevant Concepts

1. Atomic Number: Refers to the number of protons in the nucleus of an atom, not the number of atoms in a molecule.
2. Atomicity: Refers to the number of atoms in a molecule.
3. Molecularity: Not commonly used in this context; relates more to the number of molecules in a reaction.
4. None: Suggests that none of the options are correct.

Analysis and Detail

1. Atomicity is the specific term that describes the number of atoms that make up a single molecule. For example, a water molecule (H₂O) has an atomicity of 3 (2 H atoms + 1 O atom).

Verify and Summarize

Upon reviewing the terms, the correct option that defines the number of atoms in a molecule is atomicity.

Final Answer

(b) atomicity.