Choose the correct $IUPAC$ symbol and $IUPAC$ official name for the element with atomic number $108$.

Which of the following pairs has both members from the same period of the periodic table?

The last member in each period of the periodic table is

Consider the following electronic configuration of an element $(P)$ : $[Xe] 4f^{14} 5d^1 6s^2$. Then,the correct statement about element $P$ is:

In the modern periodic table,which groups of elements are known as $d$-block elements?

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 $n=6$