What is the position of copper in the long form of the periodic table?

Explain the electronic configuration of elements according to groups in the extended periodic table.

Assign the position of the element having outer electronic configuration in the periodic table:
$(i)$ $ns^{2} np^{4}$ for $n=3$
$(ii)$ $(n-1)d^{2} ns^{2}$ for $n=4$
$(iii)$ $(n-2)f^{7} (n-1)d^{1} ns^{2}$ for $n=6$

Based on the provided periodic table segment,calculate the atomic numbers of $A$ and $B$ respectively.

Write the general outer electronic configuration of $s$-,$p$-,$d$- and $f$-block elements.

The element with outer electronic configuration $(n-1)d^2 ns^2$,where $n=4$,would belong to