The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and SQA exam specifications.
Max von Laue’s discovery of the diffraction of X-rays by crystals established the nature of X-rays as electromagnetic radiation of very short wavelength and proved that crystals are composed of atoms arranged in a regular three-dimensional lattice.
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