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dec 31, 1901 - Marie and Pierre curie

Description:

Discovered that the amount of radiation in a compound is based on the amount of atoms in the compound not the way they are arranged. Also discovered the elements Radium and Polonium.

Added to timeline:

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ByBrody
2 Jan 2020

Date:

dec 31, 1901
Now
~ 122 years ago
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