Chapter 5.3, Problem 5.23QAP

Interpretation Introduction

Interpretation:

To match the given statements with given options.

Concept introduction:

Principle quantum number (n): It is denoted by ‘n’ and it represents the energy level of an electron.

Orbital angular momentum quantum number (l): It tells about the shape of the orbital. Its value is always an integer and lies within 1, 2, 3 ......., (n-1).

Each value of ‘l’ represents the subshell and each subshell has its unique shape as:

• l= 0 = ‘s’ subshell = spherical in shape
• l= 1 = ‘p’ subshell = dumbbell shape
• l= 2 = ‘d’ subshell = double dumbbell shape

Formula to calculate no. of orbitals in a subshell:

  $\text{number}\text{of}\text{orbitals}\text{=}\text{(2l+1)}$

Therefore, we can say:

• s subshell contains 1 orbital.
• p subshell contains 3 orbital.
• d subshell contains 5 orbitals.

And each orbital can have maximum two electrons. Therefore, maximum number of electrons present in the subshell:

s subshell can have maximum 2 electrons.

p subshell can have maximum 6 electrons.

d subshell can have maximum 10 electrons.