You searched for: “free electron
free electron
1. An electron in or beyond the outermost electron shells of an atom which is unbound or very weakly bound.
2. An electron which is not attached to an atom, an ion, or a molecule but it is free to move under the influence of an electric field.
3. An electron that is not bonded to an atom or a molecule and so is free to move under external electric or magnetic fields.
This entry is located in the following unit: electro-, electr-, electri- (page 92)