**Why the charge of electrons remains constant in stationary orbits?**

In the field of quantum mechanics, electrons are described as particle-wave duality, meaning they exhibit both particle-like and wave-like properties. When electrons are bound to an atom, they occupy specific energy levels or shells, commonly referred to as stationary orbits or stationary states. The charge of electrons in these stationary orbits remains constant due to various factors.

**Electron Energy Levels**

Electrons are organized in discrete energy levels around the nucleus of an atom. These energy levels are quantized, meaning they can only have certain specific values. The energy levels are represented by the quantum numbers, and each energy level can accommodate a specific number of electrons.

**Electron Stability**

Electrons occupy the lowest available energy level or shell, which is the most stable state for them. When an electron absorbs energy, it can move to a higher energy level, referred to as an excited state. However, this is an unstable state, and the electron tends to return to its original lower energy level by releasing the excess energy in the form of electromagnetic radiation.

**Electron Orbits and Charge**

The stationary orbits of electrons are regions around the nucleus where the probability of finding an electron is the highest. These orbits are determined by the wave-like properties of electrons, described mathematically by Schrödinger's wave equation. The stationary orbits are characterized by specific energy levels, and each orbit can accommodate a specific number of electrons.

**Quantum Electrodynamics**

Quantum electrodynamics (QED) is the field of physics that describes the behavior of electrons and their interaction with electromagnetic fields. According to QED, electrons possess a fundamental property called electric charge. This charge is a property of the electron itself and remains constant regardless of its energy level or orbit.

**Conservation of Charge**

The charge of an electron is conserved, meaning it cannot be created or destroyed. In an isolated system, the total charge remains constant. This conservation of charge applies to electrons in stationary orbits as well. Since the charge of an electron is an intrinsic property, it remains constant regardless of its position or energy level within an atom.

**Conclusion**

In summary, the charge of electrons remains constant in stationary orbits due to the nature of energy levels, electron stability, the wave-like behavior of electrons, the principles of quantum electrodynamics, and the conservation of charge. The charge of an electron is an intrinsic property that is independent of its energy level or orbit within an atom.

According to Bohr's theory of hydrogen atom, electrons revolve around the nucleus is some fixed orbits and during its motion, an electron does not lose energy. ... When an electron stays in such an orbit, it does not remain stationary at all.