Question

Assertion: The first ionization energy of Be is greater than that of B.

Reason: 2p orbital is higher in energy than 2s orbital.​

Answer 1

Answer:

a)

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Answer 2

Answer:

Assertion is True, Reason is True and Reason is correct explanation of Assertion

Explanation:

Assertion: It is fact that first ionization energy of Be is greater than that of B because the electron has to be removed from the more stable  half –filled  orbital than the electron from   incompletely filled  orbital of B.

Reason: R  is correct ,and the correct explanation of A. Actually the ionisation energy depends on the  penetration  power of the orbitals , the order of penetration power of orbitals is   .Therefore  Electrons are more loosely held than electrons.