1. Tardigrade
  2. Question
  3. Chemistry
  4. Consider the elements Mg. Al, S, P and Si, the correct increasing order of their first ionization enthalpy is :

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Consider the elements Mg. Al, S, P and Si, the correct increasing order of their first ionization enthalpy is :

JEE MainJEE Main 2021Classification of Elements and Periodicity in Properties

Solution:

In general from left to right in a period, ionistion enthalpy increases due to effective nuclear charge increases.

but due to extra stability of half filled and full filled electronic configuration, required ionisation enthalpy is more from neighbouring elements.

i.e. first ionisation enthalpy order is

$Al < Mg < Si < S < P$