quantum number
Atomic state label
A quantum number is one of a set of integers or half-integers that describe the state of a particle or system in quantum mechanics.
Each quantum number specifies a particular property—energy level, angular momentum, spin, or magnetic orientation.
Together they determine what states an electron can occupy in an atom: The Pauli exclusion principle states that no two electrons can share the same set of quantum numbers.
Chief school administrator
- azimuthalConcerning horizontal angular direction
- magneticAttracting iron or attention
- spinRapid rotation around axis
- orbitalRevolving around another
shell · subshell · valence · ground state · excited state · energy level · wavefunction · degeneracy
Individually separate, unconnected
- integerNumber lacking fractions
- half-integerNumber midway between integers
- eigenvalueScalar satisfying determinant equation
- PlanckQuantum theory's founder
discontinuous · stepwise · energy level · increment · observable · measurement · superposition · collapse
Half-integer spin particle
- bosonInteger-spin subatomic particle
- leptonFundamental particle without strong interactions
- baryonThree-quark composite particle
- nucleonProton or neutron
spin · strangeness · charm · flavor · parity · chirality · muon · quark
Change from one state
- emissionDischarged substance or act
- absorptionProcess of taking in
- spectrumContinuous range of values
- spectral lineWavelength marking atomic transition
photon · wavelength · fluorescence · vibrational · rotational · electronic · multiplicity
principal
Chief school administrator
- azimuthalConcerning horizontal angular direction
- magneticAttracting iron or attention
- spinRapid rotation around axis
orbital · shell · subshell · valence · ground state · excited state · energy level · wavefunction · degeneracy · node
discrete
Individually separate, unconnected
- integerNumber lacking fractions
- half-integerNumber midway between integers
- eigenvalueScalar satisfying determinant equation
Planck · discontinuous · stepwise · energy level · increment · observable · measurement · superposition · collapse
fermion
Half-integer spin particle
- bosonInteger-spin subatomic particle
- leptonFundamental particle without strong interactions
- baryonThree-quark composite particle
nucleon · spin · strangeness · charm · flavor · parity · chirality · muon · quark · gluon
transition
Change from one state
- emissionDischarged substance or act
- absorptionProcess of taking in
- spectrumContinuous range of values
spectral line · photon · wavelength · fluorescence · vibrational · rotational · electronic · multiplicity
number, quantity, quantum, quantifiable, quantitatively, quanta, quantifier, quantization, quantized