Question

Which answer best explains why Mendeleev's periodic table became the first widely accepted organized scheme for the elements?

Mendeleev, as a Russian scientist, had a better scientific reputation at that time.

Mendeleev was born from a prominent family and therefore his work got more attention.

Mendeleev mounted a campaign to discredit all earlier versions because they had no validity.

Mendeleev's investigations suggested previous versions did not work for all known elements.

Answer 1

Mendeleev's investigations suggested previous versions did not work for all known elements : best explains why Mendeleev's periodic table became the first widely accepted organized scheme for the elements.