Who was the first chemist that tried to group elements based on their properties?
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Who was the first chemist to start grouping elements based on their properties?
Johann Wolfgang Döbereiner
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Who was the first chemist to start grouping elements by properties in a periodic table?
Dmitri Mendeleev
History of the periodic table
https://en.wikipedia.org/wiki/History%20of%20the%20periodic%20table
The periodic table is an arrangement of the chemical elements, structured by their atomic number, electron configuration and recurring chemical properties. 
History of the periodic table
In 1817, German physicist Johann Wolfgang Döbereiner began to formulate one of the earliest attempts to classify the elements.
History of the periodic table
In 1869, Russian chemist Dmitri Mendeleev arranged 63 elements by increasing atomic weight in several columns, noting recurring chemical properties across them. 
History of the periodic table
He is best remembered for formulating the Periodic Law and creating a farsighted version of the periodic table of elements.
Dmitri Mendeleev
The periodic table is an arrangement of the chemical elements, structured by their atomic number, electron configuration and recurring chemical properties. In 1817, German physicist Johann Wolfgang Döbereiner began to formulate one of the earliest attempts to classify the elements. In 1869, Russian chemist Dmitri Mendeleev arranged 63 elements by increasing atomic weight in several columns, noting recurring chemical properties across them. In doing so, he is credited with formulating the Periodic Law and creating a farsighted version of the periodic table of elements.