Quantum Physics - Review Crossword 4.5 / 5 based on 2 ratings ? PhysicsQuantum physicsASAQA Created by: SilentSolitaireCreated on: 30-11-18 17:20 An electron gains energy and leaves an atom. Ionisation 1 of 13 When an electron moves to a higher energy level. Excitation 2 of 13 Proof that light behaves as a particle: the ........ effect Photoelectric 3 of 13 Proof that electrons behave as waves: ....... in the double slit experiment. Diffraction 4 of 13 To diffract through a gap, the width of the gap must be of the same order of magnitude as the De ........ Wavelength. Broglie 5 of 13 Wavelength equals speed over .... Frequency 6 of 13 Frequency time Planck's constant equals... Energy 7 of 13 The stable energy level of an electron is called the ...... state. Ground 8 of 13 When a mercury atom de-exites, what type of photon does it give out? Ultraviolet 9 of 13 What is the coating on the inside of a fluorescent light? Phosphorus 10 of 13 Atoms have ..... energy levels. Characteristic 11 of 13 How many different frequency photons could an electron in the n=4 energy level emit while moving down to ground state? 6 12 of 13 What causes the excitation in mercury atoms? A ..... being applied across the tube. Current 13 of 13
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