The number of elements in each of the long periods in the periodic table is

The elements on the right side of the periodic table are

Which of the following statements related to the modern periodic table is incorrect?
$(a)$ The $p$-block has $6$ columns,because a maximum of $6$ electrons can occupy all the orbitals in a $p$-shell.
$(b)$ The $d$-block has $8$ columns,because a maximum of $8$ electrons can occupy all the orbitals in a $d$-subshell.
$(c)$ Each block contains a number of columns equal to the number of electrons that can occupy that subshell.
$(d)$ The block indicates value of azimuthal quantum number $(l)$ for the last subshell that received electrons in building up the electronic configuration.

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

The element with atomic number $6$ is placed in:

Which of the following statements is incorrect?