Chemistry · Structure of atom
हिन्दीGiven below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The volume occupied by the nucleus is negligibly small as compared to the total volume of the atom. Reason (R): The radius of an atom is about \( 10^{-10} \text{ m} \), whereas the radius of a nucleus is about \( 10^{-15} \text{ m} \). In the light of the above statements, choose the correct answer from the options given below:
Correct answer · Option 1
Both (A) and (R) are true and (R) is the correct explanation of (A).
Explanation
Since atomic radius is \( 10^{-10} \text{ m} \) and nuclear radius is \( 10^{-15} \text{ m} \), volume ratio is extremely small, and R correctly explains A.