Home Chemistry Classification of Elements and Periodicity JEE Main 2019 In comparison to boron, beryliumhas :
Chemistry Classification of Elements and Periodicity JEE Main 2019 Single Correct MCQ
Published on: August 13, 2026

In comparison to boron, beryliumhas :

A
lesser nuclear charge and lesser first ionization enthalpy.
B
greater nuclear charge and lesser first ionization enthalpy.
C
greater nuclear charge and greater first ionization enthalpy.
D
lesser nuclear charge and greater first ionization enthalpy.

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Text Solution

Verified by Experts
The correct answer is:
D


Nuclear charge :
(more stable)

Ionisation energy of is greater than due to outer electronic configuration.

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