There are many theories about electrons, but perhaps the most fascinating is quantum theory. It offers a unique explanation of the universe. It is so complex, even Einstein never quite got a handle on it.
Electrons, as far as we can tell, never exist in a measurable precise location, the more accurately you measure its location, the less you can measure its velocity, we have to bounce light off a particle to see it, these photons move the electron in question, ruining the measurement. That's uncertainty. If you look at something small, you change its position or velocity in doing so. We must use probability to make measurements of electron motion.
Electrons also have the unique property, best summed up by Richard Feyman "electrons behave like particles...no they don't exactly, they also behave like waves...no they don't exactly."
Not much of an answer I know, but that's why it's a theory.
free electron model not take into account the potential neither the electron interaction. nearly free electron take into account the potential.J.C. Aguiar
In the VSEPR (Valence Shell Electron Pair Repulsion) theory, electron pairs around the central atom repel each other in space, leading to a molecular geometry that minimizes repulsion and maximizes stability. This repulsion between electron pairs helps determine the shape and bond angles of molecules.
Electron pool theory was proposed by Gilbert Lewis. He suggested that in certain chemical reactions, electrons are shared and not tied to specific atoms, forming a "pool" of electrons that can be used by multiple atoms. This theory played a significant role in the development of our understanding of chemical bonding.
The electron flow concept states that electrons flow from the negative terminal to the positive terminal of a voltage source, in contrast to the conventional current flow theory which assumes positive charge carriers moving from positive to negative.
The photoelectric effect occurs when light photons hit a material's surface, ejecting electrons. This demonstrates that light can transfer discrete packets of energy (photons), supporting the particle theory of light proposed by Einstein.
write note on free electron theory
Electronic theory is the theory of the behavior of the electron under various conditions including a free electron, a bound electron in either an outer or inner orbit of the atom.
the same way an insulator and a conductor will work with out the electron theory!
There is no single unified theory that explains all correlated electron systems.
Classical free electron theory could not explain many physical properties. In 1928, Sommerfeld developed a new theory applying quantum mechanical concepts and Fermi-Dirac statistics to the free electrons in the metal. This theory is called quantum free electron theory.
an atom
Rutherford.
Electron pairs
free electron model not take into account the potential neither the electron interaction. nearly free electron take into account the potential.J.C. Aguiar
VSEPR theory stands for Valence Shell Electron Pair Repulsion theory. It is a model used to predict the geometry of molecules based on minimizing the repulsion between electron pairs in the valence shell of an atom. By considering the repulsions between electron pairs, VSEPR theory helps determine the shape of molecules.
acid: electron pair acceptor Base: electron pair donor
hendrik antoon lorentz a dutch physiscist who won a nobel prize in1902 for developing the mathematical theory of the electron