Question

What is exchange energy?Write its significance.

Answer 1

Answer:

exchange in energy may be define as transformation of mass into energy and energy into mass

it's significance is

delE=MCsquare

Explanation:

Answer 2

Exchange energy: Exchange energy is the energy released when two or more electrons with the same spin exchange their positions in the degenerate orbitals of a subshell.

Explanation:

Exchange energy

The phenomenon whereby individual atomic magnetic moments will attempt to align all other atomic magnetic moments within a material with itself is known as the exchange interaction.

Its significance

It imparts stability to an atom.

For example :

1. Let's assume an atom in which there are 5 unpaired electrons(ie one unpaired electron in each one ) in its n d-orbital.
2. The Electrons are always moving inside an atom and as the space increases inside ,less is the repulsion as they face between two neighboring  electrons, which leads to stability.
3. In a degenerate orbital (where energy of each orbital is same), the electrons exchange their positions to get the maximum amount of space for movement and this ultimately leads to stability.