1. Tardigrade
  2. Question
  3. Chemistry
  4. Assertion: Generally, ionisation enthalpy increases from left to right in a period. Reason: When successive electrons are added to the orbitals in the same principal quantum level, the shielding effect of inner core of electrons does not increase very much to compensate for the increased attraction of the electron to the nucleus.

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Q. Assertion: Generally, ionisation enthalpy increases from left to right in a period.
Reason : When successive electrons are added to the orbitals in the same principal quantum level, the shielding effect of inner core of electrons does not increase very much to compensate for the increased attraction of the electron to the nucleus.

Classification of Elements and Periodicity in Properties

Solution:

Correct answer is (b) Assertion and reason both are correct statements and reason is correct explanation of assertion.