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Henry Moseley and Clarendon Laboratory blue plaque

Oxford, West Berkshire, England, United Kingdom

National Chemical Landmark: Clarendon Laboratory where H. G. J. Moseley (1887-1915) completed his pioneering studies on the frequencies of X-rays emitted from the elements. His work established the concept of atomic number and helped reveal the structure of the atom. He predicted several new element

s and laid the ground for a major tool in chemical analysis.

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