The concept of atoms "desenigrating" is not a scientific term or a widely accepted scientific idea. It's important to remember that atoms are the fundamental building blocks of matter and are generally considered to be indestructible.

While atoms can undergo transformations like nuclear fission or fusion, where their structure changes, they don't simply "desenigrate" or disappear.

If you're interested in the idea of atoms changing, it's likely related to concepts like:

* Nuclear Decay: This process involves unstable isotopes of atoms breaking down and releasing energy.

* Particle Physics: This field investigates the fundamental particles that make up atoms and the forces that govern their interactions.

It's possible you've encountered a fictional concept or a misunderstanding of scientific principles. If you can provide more context about where you encountered this term "desenigrate," it might be possible to understand the idea better.