Question

Q.10 The statement that is not correct for the
$ periodic classification of elements is
(a) The properties of elements are the periodic functions
of their atomic numbers
(b) The first ionisation energies along a period do not
vary in a regular manner with increase in atomic number
(c) Non-metallic elements are lesser in number than
metallic elements
(d) For transition elements the d-sub-shells are filled
with electrons monotonically with increase in atomic
number​

Answer 1

Answer:

b and c is not periodic property