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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.

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The Historical Development of the Period Table

ByJoshua Martin

20 Jan 2020

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Date:

jan 1, 1863

Now

~ 163 years ago

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