Principal Quantum Number Principal quantum numbers are denoted by the symbol (n). They are the principal electron shell of an atom. The Principal Quantum Number describes the electron’s shell like its ...

Imaginary numbers might seem like unicorns and goblins — interesting but irrelevant to reality. But for describing matter at its roots, imaginary numbers turn out to be essential. They seem to be ...

Researchers have proven that a fundamental law of physics applies in the quantum realm. The principle of least action dictates that objects will (unless interfered with) always move along the route ...