Question

In a group from top to bottom nuclear charge increases.

• A. True
• B. False

Answer 1

The correct option is B False

The effective nuclear charge in an element is a result of the positive charge of protons acting on valence electrons as well as the shielding effect of the inner orbittals. In a group from top to bottom, although the nuclear charge increases, the shielding effect of the inner orbittals more than counters its effect which results in a decrease in the effective nuclear charge