Chemistry, asked by gufranali2001786, 8 months ago

limitation of Afbau principle

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Answered by ItzRudaina

Limitation of aufbau principle:

The Aufbau principle cannot be applied to predict electron configuration of atoms on ionization. Although (n-1) d subshells and ns subshells lie fairly close together, yet the former is slightly higher in energy. In the 6th period, 4f and 5d subshells are exceptionally close in energy.

Answered by Ashish010103

Answer:

Explanation:The Aufbau principle cannot be applied to predict electron configuration of atoms on ionization. Although (n-1) d subshells and ns subshells lie fairly close together, yet the former is slightly higher in energy. In the 6th period, 4f and 5d subshells are exceptionally close in energy.

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