A hydrogen atom consists of an electron orbiting a nucleus made of a single proton. The electrostatic force between the two is 2.3 * 10³⁹ times greater than the gravitational force. If we could adjust the separation between the two particles, the distance at which the electrostatic and gravitational forces would be equal is

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The electrostatic force between an electron and a proton is vastly stronger than the gravitational force between them, by a factor of about $10^{39}$. This disparity is due to the fundamental nature of these forces: electrostatic force is governed by Coulomb's law and is much stronger at the atomic scale, while gravitational force is governed by Newton's law of universal gravitation and is significantly weaker, especially between objects with such small masses. Adjusting the separation does not change the fundamental nature of these forces, so they cannot be made equal.

A Hydrogen Atom Consists of an Electron Orbiting a Nucleus