Question

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.

Answer 1

Answer: (B)

The d-block has 8 columns, because a maximum of 8 electrons can occupy all the orbitals in a d-subshell.

Answer 2

The $d-block$ has $10$ columns because a maximum of $10$ electrons can occupy all the orbitals in a $d \;subshell$.
Therefore, the incorrect statement and correct option is (B): The $d-block$ has $8$ columns, because a maximum of $8$ electrons can occupy all the orbitals in a $d \;subshell$.