PhysicsSource
ChemicalAid
PhysicsSource
ZeptoMath
CollegeSource
Constants
Definitions
Equation Solvers
Calculators
Definition of Orbital
electron cloud having an energy state described by given values of the n, l, and ml quantum numbers. An orbital can contain two electrons with paired spins and is often associated with a specific region of an atom.
Google: Orbital
Wikipedia: Orbital