The statement that is not correct for th...

The statement that is not correct for the periodic classification of elements is `:`

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

non`-` metallic elements are lesser in number than metallic elements

the first ionisation energies of elements along a period do not vary in a regular manner with increase in atomic number

for transition elements the `d-` subshells are filled with electrons monotonically with increase in atomic number.

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The correct Answer is:

The `d-` sub shells are not filled with electrons monotonically with increase in atomic number. There are some exceptions like `Cr,Cu ` etc.

The statement that is not correct for the periodic classification of element is

the properties of the elements are the periodic function of their atomic numbers

non-metallic elements are lesser in number than metallic elements

the first ionization energies of elements along a period do not vary in a regular manner with increase in atomic number

for transition elements the d-sub-shells are filled with elements monotonically with increase in atomic numbers.

The properties of elements are periodic function of their atomic numbers.

Non-metallic elements are less in number than metallic elements

For transition elements the `3d` orbitals are filled with electrons after `3p`-orbitals and before `4s`- orbitals

The first ionisation enthalpies of elements generally increase with increase in atomic number as we go along a period

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

Non-metallic elements are less in number than metallic elements.

The first ionisation energies of elements along a period do not vary in a regular manner with an increase in atomic number.

For transition elements the ionisation energies increase gradually with increase in atomic number.