In the Classical Free-Electron Theory of Metals

Multiple Choice

In the classical free-electron theory of metals,

A) a metal is pictured as a regular three-dimensional array of atoms or ions.
B) a metal contains a large number of electrons that are free to move throughout the whole metal.
C) thermal equilibrium is maintained by collisions of electrons with the lattice ions.
D) electrons in the absence of an electric field move about the metal much as gas molecules move in a container.
E) All of these are true.