The Most Stable Orbital among the following are

Orbitals that are partially and fully filled are the most stable.

The stability of half-filled and full-filled orbitals has the following causes:

Exchange energy:

• Since the energies of all the orbitals in a given subshell are the identical, electrons that are present in various orbitals of the same subshell can move about.
• The energy released as a result of such an electron exchange is referred to as exchange energy.
• The orbital is more stable the more the exchange energy is present.
• Exchange energies are greatest for orbitals that are fully and partially filled.

Symmetry:

• Stability results from symmetry.
• Because electrons are evenly distributed in their orbitals in a fully or partially filled subshell, this state is the most stable.
• The structure becomes more stable if shifting of electrons leads to the symmetrical distribution of electrons in a subshell.
• p³ and d⁵ both have the highest degree of symmetry and are half-filled electrical configurations.

Summary:-

The Most Stable Orbital among the following are 1. p² and p³ 2. p⁴ and d⁴ 3. p³ and d⁵ 4. d⁵ and d⁷

p³ and d⁵ are the most stable orbital among the following. The region with more likelihood of having electrons is the orbital

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