What is the contribution of Dobereiner to periodic table?


He provided the base for the classification of elements he says the elements are atomic masses nearly same he arranged the atomic masses of the middle element is approximately the arithmetic mean of other two elements,
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The Periodic Table of Elements
Dmitri Mendeleev generally is credited with the creation of the first periodic table, which charts the chemical elements by atomic number and valence shell electron configuration.
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Picture of Dobereiner's Periodic Table? http://www.unit5.org/christjs/triads.gif German chemist Johann Dobereiner (1780-1849) who grouped elements based on similarities. Calcium (
Dobereiner was the 1st to recognize that several
The vertical columns of a periodic table are referred to as groups or families while the rows are called periods. Each box represents a different element. Within the box, the top
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Dobereiner is remembered for what were called "Dobereiner's Triads" which are groups of three elements having similar chemical properties. This is a ...
Dobereiner is Johan Wolfgang Dobereiner. He lived from 1780 to 1849 and was a German chemist. He is most notably known for his work that foreshadowed the periodic ...
The developer of the first periodic table was a chemist from Germany named Johann Dobereiner, but the originator of the periodic table was Dmitri Mendeleev. ...
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