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jan 1, 1863 - John Newlands divided the new 53 elements into 11 groups.
Description:
John Newlands was an English chemist who divided the new 53 elements into 11 groups based on their characteristics.
Added to timeline:
The Historical Development of the Period Table
By
Joshua Martin
20 Jan 2020
0
0
207
Date:
jan 1, 1863
Now
~ 161 years ago
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