Question

The statement that is not correct for periodic classification of elements is

• A. the properties of elements are a periodic function of their atomic numbers
• B. non-metallic elements are less in number than metallic elements
• C. the first ionization energies of elements along a period do not vary in a regular manner with in crease in atomic number
• D. for transition elements, the d-subshells are filled with electrons monotonically with increase in atomic number

Answer 1

Answer: (D)

Correct answer is (d) for transition elements, the d-subshells are filled with electrons monotonically with increase in atomic number