Multiple choice

Which of the following properties was formulated by Mendeleev?

  1. The properties of elements are the periodic functions of their atomic radii.

  2. The properties of elements are the periodic functions of their atomic numbers.

  3. The properties of elements are the periodic functions of their atomic masses.

  4. The properties of elements are the periodic functions of the number of elements.
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C Correct answer
Explanation

Mendeleev stated the famous periodic law according to which, "Properties of elements are a periodic function of their atomic weights''. Mendeleev arranged elements in the increasing order of their atomic weights in the form of a table, which is known as Mendeleev's Periodic Table.

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