The atomic number and mass number for an atom with $50$ protons, $69$ neutrons and $50$ electrons are respectively

$($A$)50$ and $60$

$($B$)50$ and $100$

$($C$)50$ and $119$

$($D$)60$ and $119$

In which of the following pairs of elements are both members metals?

$(1)Cl$ and $Br$

$($II$)Al$ and $Si$

$($III$)Cu$ and $N$

$($IV$)Zn$ and $Mg$

$($A$)$ I and II

$($B$)$ only II

$($C$)$ only III

$($D$)$ only IV

Consider the following grid:

$\backslash$table$[[1.,2.,3.,4.,5.],[(N{H}_4{)}_{2}S{O}_4,F{e}_2{O}_3,FeC{l}_3,C{a}_3(P{O}_4{)}_2,N{H}_{4}N{O}_3$