Given below are two statements: Statement I : Net positive charge of nucleus experienced by the outer shell electrons is called effective nuclear charge. Statement II : Isotopes of a given element show same chemical behaviour. In the light of the above statements, choose the most appropriate answer from the options given below:

Step-by-step solution

- Statement I: The net positive charge of the nucleus that is experienced by the outer shell electrons is called the effective nuclear charge. This is correct, as the outer electrons feel a reduced positive charge due to shielding by inner electrons. - Statement II: Isotopes of a given element have the same number of protons and electrons but differ in the number of neutrons. Since chemical behavior depends on the electron configuration, isotopes exhibit the same chemical behavior. This is also correct.