What is in between the electrons and nucleus of an atom?

The space between the nucleus and the electrons in an atom isn't empty. It's filled with the electron%20cloud, a region where electrons are most likely to be found. Electrons don't orbit the nucleus in neat paths like planets around a sun, instead, they exist in probability distributions described by atomic%20orbitals.

These orbitals have distinct shapes (s, p, d, f, etc.) and energy levels. The higher the energy level, the further, on average, the electron is from the nucleus. These orbitals are mathematical solutions to the Schrödinger%20equation, which governs the behavior of electrons in atoms.

Furthermore, there's the electromagnetic force at play. The positively charged nucleus attracts the negatively charged electrons. However, the electrons' motion also generates a magnetic field, contributing to the complex interactions within the atom. And of course, everything is subject to the rules of quantum%20mechanics, which govern the behaviour of the subatomic world.