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feb 26, 1789 - First Extensive Element List (Moseley)

Description:

Made the first extensive element list, of 33, separating metals from nonmetals. Discovered Oxygen and Hydrogen.

Divided them into four different groups. With the few elements that were known at the time.

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ByMICHELLE MORGAN SILLER
29 Nov 2018
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Date:

feb 26, 1789
Now
~ 237 years ago
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