Page 478 - Physics Coursebook 2015 (A level)

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Chapter 30:
Quantum physics
Learning outcomes
You should be able to:
■■ appreciate the particulate nature of electromagnetic radiation
■■ interpret the photoelectric effect in terms of photons
■■ describe electron diffraction and the evidence it provides
for the wave nature of matter
■■ explain line spectra in terms of discrete electron energy
levels in atoms
■■ use simple band theory to explain the different electrical
conductivities of metals, insulators and semiconductors