As we go from left to right in period $2$ of the periodic table,the gram atomic volume of the elements:

Which of the following statements is incorrect?

If the period number and group number of any representative element are the same,then which of the following statements is incorrect regarding such type of element in its ground state? (Period number and group number are according to the modern form of the periodic table)

Which of the following statements are correct for the classification of elements?
$I$. The properties of elements are periodic functions of their atomic numbers.
$II$. Non-metallic elements are less in number than the metallic elements.
$III$. The first ionisation energies of elements along a period do not vary in a regular manner.
$IV$. The ground state electronic configuration of $Pd (Z=46)$ is $[Kr] 4d^8 5s^2$.

The set of elements that differ in mutual relationship from those of the other sets is:

Match the following elements with their respective blocks in the periodic table based on their atomic number $(Z)$:

Column-$I$	Column-$II$
$A. Z = 37$	$P. p-$ block
$B. Z = 42$	$Q. f-$ block
$C. Z = 34$	$R. d-$ block
$D. Z = 92$	$S. s-$ block