It's not quite accurate to say electrons "revolve" around the nucleus. The Bohr model of the atom, which depicts electrons orbiting the nucleus like planets, is a simplification. The modern, more accurate understanding of the atom is based on quantum mechanics.

Here's why you can't "stop" electrons:

* Quantum Mechanics: In quantum mechanics, electrons exist in orbitals, regions of space where the probability of finding an electron is high. These orbitals are not orbits in the classical sense. Electrons don't have fixed paths, and their behavior is governed by probability.

* Energy Levels: Electrons occupy specific energy levels within the atom. To stop an electron, you would need to remove its energy, which is not possible without changing the atom's structure.

* Uncertainty Principle: Heisenberg's uncertainty principle states that you can't know both an electron's position and momentum with perfect accuracy simultaneously. If you were to somehow "stop" an electron, you would instantly know both its position and momentum, violating this principle.

What you can do:

You can influence the behavior of electrons by:

* Excitation: Electrons can absorb energy and move to higher energy levels. This can be achieved by exposing the atom to light or heat.

* Ionization: Electrons can be completely removed from the atom by providing enough energy, creating an ion.

In summary, you can't stop electrons in the sense of bringing them to a standstill. Their behavior is fundamentally governed by quantum mechanics, and their energy levels and probabilistic nature make it impossible to fix their positions or remove their motion completely.