a theory of atomic structure that assumes an electron orbiting a nucleus can only be at certain energy levels
(physics) a theory of atomic structure that combined Rutherford''s model with the quantum theory; electrons orbiting a nucleus can only be in certain stationary energy states and light is emitted when electrons jump from one energy state to another
(physics) a theory of atomic structure that combined Rutherford's model with the quantum theory; electrons orbiting a nucleus can only be in certain stationary energy states and light is emitted when electrons jump from one energy state to another