$(a)$ Define atomicity.
$(b)$ Give an example for an element which is monoatomic and a polyatomic molecule.
$(b)$ Give an example for an element which is monoatomic and a polyatomic molecule.
(N/A) Atomicity is defined as the total number of atoms present in one molecule of an element or a compound.
$(b)$ Monoatomic molecule: $He$ (Helium) or $Ne$ (Neon) are examples of monoatomic molecules because they consist of a single atom.
Polyatomic molecule: $S_8$ (Sulphur) is an example of a polyatomic molecule because it consists of eight atoms.
$(b)$ Monoatomic molecule: $He$ (Helium) or $Ne$ (Neon) are examples of monoatomic molecules because they consist of a single atom.
Polyatomic molecule: $S_8$ (Sulphur) is an example of a polyatomic molecule because it consists of eight atoms.
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