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jan 1, 1864 - John Newlands 1864- Arranged the known 62 elements from lightest to heaviest. He noticed that every 8th element had similar chemical and physical properties. Became known as Newland’s law of octaves
Added to timeline:
periodic table
By
Matvey
14 Mar 2021
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0
213
Date:
jan 1, 1864
Now
~ 162 years ago
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