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jan 11, 1887 - Moseley, Henry G.J. (1887-1915)

Description:

discovered the relation between frequency of x-rays emitted by an element and its atomic number, thus indicating the element’s true position in the Periodic Table

Added to timeline:

26 Sep 2017
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history of chemistry

Date:

jan 11, 1887
Now
~ 131 years ago

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