Question

Which one 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-subshell.
• 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 ($\mathcal{l}$) 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 (5) in a d-subshell.