Assertion (A) : All isotopes of a given element show the same type of chemical behaviour. Reason (R) : The chemical properties of an atom are controlled by the number of electrons in the atom.

Assertion (A) : All isotopes of a given element show the same type of

1.	Assertion (A) : All isotopes of a given element show the same type of chemical behaviour. Reason (R) : The chemical properties of an atom are controlled by the number of electrons in the atom.
Answer» Both A and R are true and R is the correct explanation of A. Both A and R are true but R is not the explanation of A. A is true and R is false Both A and R are false Solution :Both ASSERTION and reason are true and reason is the correct explanation of assertion. Isotopes have the sam e atom ic num BER i.e ., same number of electrons which are responsible for their chemical behaviour. So, these EXHIBIT similar chemical properties.