The term you're referring to is the "ground state" of an electron. In the context of atoms, the ground state represents the lowest energy level that an electron can occupy within an atom. When an electron is in its ground state, it is considered to be in its most stable and lowest energy configuration.
According to the laws of quantum mechanics, electrons in atoms occupy discrete energy levels or orbitals. These energy levels are quantized, meaning they can only have specific values. Electrons naturally occupy the lowest available energy level, which corresponds to the ground state.
In the ground state, electrons are "satisfied" in the sense that they have achieved the lowest possible energy configuration within the atom. This means that they do not emit or absorb photons, as doing so would require a transition to a higher energy level.
However, it's important to note that electrons can transition to higher energy levels by absorbing photons of specific energies, or they can transition from higher energy levels to lower energy levels by emitting photons. These transitions result in the emission or absorption of photons with specific wavelengths corresponding to the energy difference between the involved energy levels.
The ground state of an electron is often compared to the "Goldilocks" principle because it represents the state that is just right for the electron to be in its most stable and balanced configuration.