Who is Mandeleeff and Dobereiner? What did they discovered
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Answer:
Johann Wolfgang Döbereiner (13 December 1780 – 24 March 1849) was a German chemist who is best known for work that ...
Died: 24 March 1849 (aged 68); Jena, Grand Duchy of Saxe-Weimar-Eisenach
Known for: Döbereiner's triads; Döbereiner's lamp
Born: 13 December 1780; Hof, Principality of Bayreuth
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Dmitri Ivanovich Mendeleev :
He was a Russian chemist and inventor. He is best remembered for formulating the Periodic Law and creating a farsighted version of the periodic table of elements.
Johann Wolfgang Döbereiner :
He was a German chemist who is best known for work that foreshadowed the periodic law for the chemical elements, and for inventing the first lighter, which was known as the Döbereiner's lamp. He became a professor of chemistry and pharmacy at the University of Jena.