Question

What are the various factors due to which the ionization enthalpy of the main
group elements tends to decrease down a group?​

Answer 1

Answer:

The factors responsible for the ionization enthalpy of the main group elements to decrease down a group are listed below: (i) Increase in the atomic size of elements: As we move down a group, the number of main energy shells(n) increases. As a result, the atomic size also increases gradually on moving down a group.

Answer 2

Answer:

The factors responsible for the ionization enthalpy of the main group elements to decrease down a group are listed below: Increase in the atomic size of elements: As we move down a group, the number of main energy shells(n) increases. As a result, the atomic size also increases gradually on moving down a group.