Question

Match the following elements with its atomicity:

Elements	Atomicity
Argon	(p) One
Nitrogen	(q) Three
Ozone	(r) Eight
Sulphur	(s) Two

(a)- i - s, ii - p, iii - q, iv - r
(b)- i - s, ii - q, iii - p, iv - r
(c)- i - p, ii - s, iii - q, iv - r
(d)- i - r, ii - p, iii - s, iv - q

Answer 1

Hint: We know that atomicity is the number of atoms in a stable molecule of an element, compound or a substance. Keeping the definition and the electronic configuration of the options in mind, we can solve the question.

Complete answer:
The atomicity of argon (Ar) is 1 as in one molecule of argon, only 1 atom exists. Moreover, Argon falls in the noble gas category. In fact, the atomicity of all noble gases is 1.
The atomicity of Nitrogen is 2. This is because in a molecule of Nitrogen, ${{N}_{2}}$ contains 2 atoms.
The atomicity of Ozone molecules (${{O}_{3}}$) is 3. This is because an Ozone molecule contains 3 oxygen atoms.
The atomicity of Sulphur molecules is 8. This is because the Sulphur molecule (${{S}_{8}}$) contains 8 atoms of sulphur.
Hence, we can match Argon to One, Nitrogen to Two, Ozone to Three and Sulphur.
Therefore, the correct match is i - p, ii - s, iii - q, iv - r

So, Option C is the correct answer.

Note:
We know that atomicity can also be determined as a ratio of molecular mass and atomic mass of that atom in that molecule.
On the basis of atomicity, molecules can be defined as monatomic, diatomic, triatomic and polyatomic. Monoatomic molecules are the molecules that contain a single atom, diatomic molecules on the contrary contain two atoms of the same element.
Triatomic molecules contain three atoms of the same element and polyatomic molecules contain more than three atoms of the same element.
In the above question, Argon is monoatomic, Nitrogen is diatomic, Ozone is triatomic whereas Sulphur is polyatomic.