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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.

1.	Both (A) and (R) are True and (R) is the correct explanation of (A).
2.	Both (A) and (R) are True but (R) is not the correct explanation of (A).
3.	(A) is True but (R) is False.
4.	(A) is False but (R) is True.

Subtopic: Number of Electron, Proton & Neutron |

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