Question

According to VBT, the formation of a stable bond requires _____________

(a) The electrons should have opposite spins

(b) The two atoms should be close to each other

(c) The greater overlapping of the electron clouds

(d) All of the mentioned

The question was posed to me during an internship interview.

My doubt stems from Valence Bond Theory topic in portion Atoms to Molecules to Material’s for Engineers of Engineering Chemistry I

Answer 1

Right option is (d) All of the mentioned

The explanation is: According to VBT, when two atoms come closer to each other with opposite electron spins, due to mutual rearrangements (or overlapping) of their electron clouds, energy changes are produced.