Multiple choice

Which of the following statements is/are not true about Mendeleev's periodic table?

(a) He started his work with 65 elements known at that time. (b) He examined the relationship between the atomic masses of the elements and their physical and chemical properties. (c) Mendeleev gave a specific position to isotopes also in his periodic table.

  1. Only (a)

  2. Only (b)

  3. Only (c)

  4. Both (a) and (c)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Both a and c are wrong. Mendeleev classified the 56 known elements of his time. No separate slot was alloted to the isotopes in Mendeleev's periodic table.  

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