The extra stability of half-filled subshell is due to :
(A) Symmetrical distribution of electrons
(B) Smaller coulombic repulsion energy
(C) The presence of electrons with the same spin in non-degenerate orbitals
(D) Larger exchange energy
(E) Relatively smaller shielding of electrons by one another
Indentify the correct statements :
Solution
<p>The enhanced stability of a half-filled subshell is attributed to the following factors:</p>
<p><p><strong>Symmetrical Distribution of Electrons</strong>: Electrons are evenly distributed across the available orbitals, leading to a balanced and stable arrangement.</p></p>
<p><p><strong>Large Exchange Energy</strong>: The energy due to the exchange of electrons with parallel spins among degenerate orbitals is maximized, contributing to increased stability.</p></p>
<p><p><strong>Smaller Coulombic Repulsion</strong>: The repulsion between electrons is minimized in a half-filled configuration, reducing the overall energy of the subshell.</p></p>
<p><p><strong>Smaller Shielding of Electrons</strong>: In a half-filled subshell, electrons are more exposed to the nuclear charge, as there is less shielding effect from other electrons, enhancing stability.</p></p>
About this question
Subject: Chemistry · Chapter: Atomic Structure · Topic: Bohr's Model
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