Study the orbital diagrams of two atoms 'X' and 'Y'. Which subshell will be more stable and why?

Question

Study the orbital diagrams of two atoms 'X' and 'Y'. Which subshell will be more stable and why? <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/c-xq4dhrsjmdfd.png" /> (A) X, exchange energy is maximum, so is stability (B) Y, exchange energy is maximum, so is stability (C) X, exchange energy is minimum, so stability is maximum (D) Y, exchange energy is minimum, so stability is maximum

Tardigrade Admin · Accepted Answer

In 'X' one electron can exchange energy with 5 orbitals while in 'Y' energy exchange is between 3 orbitals hence half-filled orbitals are more stable.

Q. Study the orbital diagrams of two atoms 'X' and 'Y'. Which subshell will be more stable and why?

X, exchange energy is maximum, so is stability

Y, exchange energy is maximum, so is stability

X, exchange energy is minimum, so stability is maximum

Y, exchange energy is minimum, so stability is maximum

In 'X' one electron can exchange energy with 5 orbitals while in 'Y' energy exchange is between 3 orbitals hence half-filled orbitals are more stable.