Assertion: In p-block elements, a lot of variation in properties of elements in a group is observed. Reason: Difference in inner core of electronic configuration greatly influences the physical and chemical properties of elements.

Question

Assertion: In p-block elements, a lot of variation in properties of elements in a group is observed. Reason: Difference in inner core of electronic configuration greatly influences the physical and chemical properties of elements. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

The inner core of the electronic configuration may, however, differ. The difference in inner core of elements greatly influences their physical properties (such as atomic and ionic radii, ionisation enthalpy, etc.) as well as chemical properties. Consequently, a lot of variation in properties of elements in a group of p-block is observed.

Q. Assertion : In p-block elements, a lot of variation in properties of elements in a group is observed. Reason : Difference in inner core of electronic configuration greatly influences the physical and chemical properties of elements.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Q. Assertion : In $p$ -block elements, a lot of variation in properties of elements in a group is observed.
Reason : Difference in inner core of electronic configuration greatly influences the physical and chemical properties of elements.