20h 45min, mar 1, 1914 y - he discovered a gap in the periodic table

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https://www.google.com/search?q=henry+moseley&safe=strict&source=lnms&sa=X&ved=0ahUKEwjGgffEgeLXAhUR0IMKHQO4CzoQ_AUICSgA&biw=1920&bih=895&dpr=1

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1 Dec 2017

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henry moseley timeline

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