Question

What are the factors responsible for the stability of half filled and completely filled orbitals.

Answer 1

Answer:

The reason for their stability are symmetry and exchange energy. The half-filled and fully-filled orbitals are more symmetrical than any other configuration and symmetry leads to greater stability. The electrons present in the different orbitals of the same sub-shell can exchange their positions.

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Answer 2

The concept is already known that symmetry leads to stability.

Explanation:

• Fully filled or half filled subshells have a symmetric distribution of electrons and are therefore more stable.
• Electrons in the same subshell have the same energy but different spatial distribution.
• As a result, their shielding is relatively small and the electrons are more strongly attracted by the nucleus.
• The degenerate orbitals in half-filled and fully-filled orbitals have higher stability than other partially filled configurations.
• The electrons in the half-filled and fully-filled configurations have a symmetric distribution and are therefore more stable than the asymmetric configuration.