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NEETChemistryClassification of Elements and Periodicity in Properties

How did Mendeleev arrange the elements in his periodic table?

Options

  1. AAlphabetically
  2. BIn order of discovery
  3. CIn horizontal rows and vertical columns of increasing atomic weights
  4. DBased on their melting points

Correct answer

C. In horizontal rows and vertical columns of increasing atomic weights

Step-by-step solution

Mendeleev arranged the elements in horizontal rows and vertical columns of increasing atomic weights.

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