Question

According to modern periodic law, the properties of elements are a periodic function of their ___ .

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

Answer 1

The correct option is C

atomic numbers

According to modern periodic law, the properties of elements are a periodic function of their atomic numbers. Atomic number is the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.