Erwin Schrödinger invented the electron cloud model of the atom. This atomic model does not specifically pinpoint where an electron is likely to be as the Bohr model does. Instead, it depicts all the positions where an electron might be, which generates a cloud of possible locations that gets denser as it approaches the nucleus.
This cloud gives the model its name though sometimes it is referred to as the Schrödinger model. This atomic model incorporates the ideas of quantum physics into the atom. One important idea of quantum mechanics that this model uses is the uncertainty principle, which states that scientists have only a limited ability to know the exact location and movement of a particle.