The principle that two identical fermions can't have the same position and velocity (to within the limits of the Heisenberg Uncertainty Principle). See also: Heisenberg Uncertainty Principle, fermion, Debriefing
no more than two electrons can occupy an atomic orbital; these electrons must have opposite spin. (see Hund's rule, Aufbau principle) peptide bond
The requirement for electrons (or other fermions) that the wavefunction for a collection of such particles is antisymmetric under interchange of the position and spin coordinates of any pair of identical particles. In the case of noninteracting or uncorrelated particles, it leads to the requirement that at most, one particle can be in each single-particle state.
Pauli exclusion principle is the statement that two electrons in an atom cannot have identical all four quantum numbers. It was first formulated in 1925 by Austrian-born Swiss physicst Wolfgang Ernst Pauli (1900-1958).
no two electrons or protons or neutrons in a given system can be in states characterized by the same set of quantum numbers
See Exclusion Principle, above.
No more than two electrons can occupy an orbital, and this they can only do if they have opposite spin.
two quantum phenomena cannot occupy same state. realist- reality is independent of the observer. The observer does not see the reality although it is there
Quantum mechanical principle by which no two particles of the same kind can have the same position and momentum.
the physics principle that no two fermions can exist in identical quantum states. (In plain English, no two particles can occupy the same state at the same time.)
No two electrons in the same atom may have identical sets of four quantum numbers.
The principle that no two particles in the same quantum state may exist in the same place at the same time. Particles that obey this principle are called fermions; particles that do not are called bosons. [ ] [ Close Glossary
The Pauli exclusion principle is a quantum mechanical principle formulated by Wolfgang Pauli in 1925. This principle is significant for the fact that it explains why matter occupies space exclusively for itself and does not allow other material objects to pass through it, at the same time allowing light and radiation to pass. It states that no two identical fermions may occupy the same quantum state simultaneously.