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jun 13, 1869 - dmitri mendekeev

Description:

Arranged elements into 7 groups with similar properties. He discovered that the properties of elements "were periodic functions of the their atomic weights". This became known as the Periodic Law.

Added to timeline:

21 Sep 2017
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0
137
Atomic theory time line
homework

Date:

jun 13, 1869
Now
~ 149 years ago
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