Question

According to Mendeleev’s periodic law, the properties of the elements are the periodic function of their .

• A. atomic numbers
• B. atomic volumes
• C. atomic masses
• D. atomic densities

Answer 1

The correct option is C atomic masses

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> According to Mendeleev’s periodic law, the properties of elements are the periodic function of their atomic masses. He arranged the elements in the increasing order of atomic mass and observed that there was a periodic occurrence of elements with similar properties.