The screening effect of inner electrons of the nucleus causes
A decrease in the ionization potential
An increase in the ionization potential
No effect on the ionization potential
An increase in the attraction of the nucleus to the electrons
The correct option is A A decrease in the ionization potential
Screening effect of inner electrons will lead to decrease in attraction of outer electrons from the nucleus. Hence there is decrese in ionization potential because it will be easier to remove outermost electron now.