Question

Ionization energy order for boron family and I need explanation

Answer 1

Answer:

Ionization energies

Every element in the boron group has three electrons in its outermost shell (so-called valence electrons), and for each element there is a sharp jump in the amount of energy required to remove the fourth electron, reflecting the fact that this electron must be removed from an inner shell.

Answer 2

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Answer:

Ionization energy trend in Boron family

Explanation:

$☆★$Down the group, the values of Ionization Enthalpy do not decrease smoothly. From Boron to Aluminium, the Ionization Enthalpy increase as expected. ... The first Ionization Enthalpy of Thallium is greater than Aluminium. Reason: This trend is observed due to the poor shielding of d and f orbitals.

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