Question

The scientist who arranged the elements, in their increasing order of atomic weight is ?

• A. Mendeleev
• B. Dalton
• C. Avogadro
• D. Mendel

Answer 1

Answer:

A. Mendeleev

• The scientist who arranged the elements in the increasing order of their atomic weight (mass) is Dmitri Mendeleev.

• He developed the first widely accepted version of the Periodic Table in 1869, primarily basing his arrangement on increasing atomic weight, which allowed him to predict the properties of undiscovered elements.