WBCS.LIVE practice question

Who is credited with classifying elements on the basis of their atomic mass?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Dmitry Mendeleev
  2. John Dalton
  3. John Alexander Reina Newlands
  4. Johann Wolfgang Dobereiner

Correct answer and explanation

Correct answer: Dmitry Mendeleev