Question

Choose the correct answer from the choice given:
(i) Ionization potential increases over a period from left to right because the:

• A. Atomic radius decreases and nuclear charge increases
• B. Atomic radius increases and nuclear charge decreases
• C. Atomic radius and nuclear charge decreases
• D. Atomic radius and nuclear charge increases

Answer 1

The correct option is A Atomic radius decreases and nuclear charge increases

Correct option : (d) - Atomic radius decreases and nuclear charge increases

$\bullet$ As we move from left to right in a period, protons goes on increasing the attraction goes on increasing and atomic size decreases.
$\bullet$ Thus, the outermost shell electrons come closer to the nucleus and are more firmly bound. Hence, Ionization Potential also increases.