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jan 1, 1903 - Marie Curie discovers "radium, a new element which spontaneously disintegrated into other elements. This proved that the atoms of one element at least were not indivisible"

Added to timeline:

24 Oct 2017
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A Timeline of the Atomic HIstory
Dalton's atomic theory was the first attempt to describe all...

Date:

jan 1, 1903
Now
~ 116 years ago

Images:

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