The electron cloud is a way of visualizing the results of mathematical equations used to calculate the position of an electron as it orbits the nucleus of the atom. The area where the cloud is densest describes the most ... More »

The first quantum number, called the principal quantum number (n), refers to the size of the electron cloud and the energy of an electron. The range of the n value goes from one to the number of the shell that contains t... More »

The charge cloud model is an atomic model postulated by Erwin Schrödinger that takes into account the particle-wave duality of electrons orbiting an atomic nucleus. This model assigns a cloud of probability densities in ... More »

The electron cloud of an atom is the area outside an atom's nucleus in which electrons exist. The Bohr model of the atom, popular in the early 20th century, was disproven by quantum physics theories put forth by Werner H... More »

The nucleus of an atom is surrounded by an electron cloud that is held in place by an electromagnetic force. The nucleus accounts for significantly more of the atom's total mass than the cloud, although the cloud account... More »

The electron cloud model is a theory of the atom that comports with the modern understanding of quantum mechanics. The model dispenses with the classical "orbiting electrons" depiction and envisions electrons as holding ... More »

An electron is a negatively charged sub-atomic particle that is located in an atom along with protons and neutrons. The electrons are found in shells and sub-orbitals that surround the nucleus of the atom. More » Science Chemistry Atoms & Molecules