Though their formal honorific is Representative, members of the U.S House of Representatives are frequently called congressmen or congresswomen, while U.S. Senate members are mainly called senators. Article I, Section 6, of the U.S. Constitution requires members of Congress to decide its pay.
This principle forms the basis of the electron cloud model. Thus we see that an electron cloud model is a visual model that gives the probable locations of electrons in an atom. In this model, electrons are not shown as particles moving around the nucleus in a fixed orbit. It is a modern and the most accepted atomic model, and has rendered all previous explanations of the atomic structure obsolete. Erwin Schrodinger, an Austrian physicist came up with the electron cloud model in 1926.
Electron cloud is an informal term in physics. It is used to describe where electrons are when they go around the nucleus of an atom. The electron cloud model is different from the older Bohr atomic model by Niels Bohr. Bohr talked about electrons orbiting the nucleus, in a way similar to how the planets go around the Sun. The electron cloud model says that we can not know exactly where an electron is at any given time, but the electrons are more likely to be in specific areas.