What exactly are thermions and fermions?

Question

this probably has something to do with higher excited states of an electron or some other charged particles....

Answer 1

Thermionic emission, emission of electrons or ions by substances that are highly heated, the charged particles being called thermions. The number of thermions emitted increases rapidly as the temperature of the substance rises. The heated material may be in the form of a metal filament or of some compound that coats and is heated by the filament. If the heated body carries a positive or negative charge, the thermions will be of the same charge. At temperatures below red heat (see black body), thermionic emission from uncharged bodies is chiefly positive; at higher temperatures it is negative. The effect was discovered by Thomas A. Edison in 1883 when he was working on filaments for the electric light. Thermionic emission's most important practical application in electronics is in the electron tube, since it is the mechanism by which electrons are emitted from the cathode.


fermions :Any of a group of subatomic particles having odd half-integral spin (1/2, 3/2). Fermions are named for the Fermi-Dirac statistics that describe their behaviour. They include particles in the class of leptons, baryons, and nuclei of odd mass number (e.g., tritium, helium-3, uranium-233). They obey the Pauli exclusion principle. Fermions are produced and undergo annihilation in particle-antiparticle pairs.

Answer 2

In particle physics, fermions are particles with half-integer spin. They are named after Enrico Fermi. In the Standard Model there are two types of elementary fermions: quarks and leptons. Since fermion numbers are often approximately conserved, they are sometimes said to be the constituents of matter

An electrically charged particle, especially an electron, emitted by a conducting material at high temperatures :Thermion


http://en.wikipedia.org/wiki/Fermion

http://en.wikipedia.org/wiki/Thermion

Answer 3

fermions elementary matter making particles having spin+1/2or-1/2
thermeons electrons emitted by thermonic emission

Answer 4

Thermions