Question

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

• A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
• B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
• C. Assertion is true but Reason is false.
• D. Both Assertion and Reason are false.

Answer 1

Answer: (A)

Chemical properties are determined by number of electrons and isotopes have same number of electrons and protons.