Dmitri mendeleev
Date of work: Dmitri Mendeleev came up with the concept of the Periodic table in 1869.
What he contributed to the Periodic Table: Dmitri Mendeleev was the individual responsible for the concept of the Periodic Table. He claimed that the idea of the Periodic Table came to him in a dream. “In a dream I saw a table where all the elements fell into place as required. Awakening, I immediately wrote it down on a piece of paper.”
What he contributed to the Periodic Table: Dmitri Mendeleev was the individual responsible for the concept of the Periodic Table. He claimed that the idea of the Periodic Table came to him in a dream. “In a dream I saw a table where all the elements fell into place as required. Awakening, I immediately wrote it down on a piece of paper.”
- This is an example of Dmitri MENDELEEV'S Periodic Table.
johann Dobereriner
Date of work: His work was done in 1817
What they contributed to the Periodic Table: Dobereiner discovered that the relative atomic mass of the middle element in each triad was close to the average of the relative atomic masses of the other two elements.
What they contributed to the Periodic Table: Dobereiner discovered that the relative atomic mass of the middle element in each triad was close to the average of the relative atomic masses of the other two elements.