Isotopes of an element have (a) the same physical properties (b) different chemical properties (c) different number of neutrons (d) different atomic numbers.
Isotopes of an element possess a similar number of electrons or protons but distinct numbers of neutrons. So all isotopes have the same chemical properties. Hence, Option C i.e. Same chemical properties are correct.
Option C. Isotopes of an element possess a similar number of electrons or protons but distinct numbers of neutrons. So all isotopes have the same chemical properties. Hence, Option B i.e. Same chemical properties are correct.