the ability to conduct electricity by conductors, insulators and semiconductors explained by
a. bond theory
b. energy gain enthalpy
c. forbidden zone
d. band theory
Answers
Answer:
The conduction in conductors is due to the free electrons in metal bonding. The conduction in semiconductor is due to the movement of electron & holes. There are no free electrons or holes thus, there is no conduction. There is no or low energy gap between the conduction & valance band of a conductor
Answer:
Conductors
A conductor is a material that is able to conduct electricity with minimal impedance to the electrical flow. It is commonly a metal.
LEARNING OBJECTIVES
Apply the concept of band theory to explain the behavior of conductors.
KEY TAKEAWAYS
Key Points
A conductor is a material which contains movable electric charges.
In metallic conductors, such as copper or aluminum, the movable charged particles are electrons, though in other cases they can be ions or other positively charged species.
Band theory, where the molecular orbitals of a solid become a series of continuous energy levels, can be used to explain the behavior of conductors, semiconductors and insulators.
Most familiar conductors are metallic.
Key Terms
voltage: The amount of electrostatic potential between two points in space.
molecular orbital: The quantum mechanical behavior of an electron in a molecule describing the probability of the electron’s particular position and energy; approximated by a linear combination of atomic orbitals.
metal: Any of a number of chemical elements in the periodic table that form a metallic bond with other metal atoms; generally shiny, somewhat malleable and hard, often a conductor of heat and electricity.