Question

the shape of a particular sub shell is known by​

Answer 1

The shape of a particular sub-shell is known by its AZIMUTHAL QUANTUM NUMBER.

For example:

• "s" sub-shell has azimuthal quantum number as l = 0 , and its shape is spherical.

• "p" sub-shell has azimuthal quantum number as l = 1 and its shape is dum-bell.

• "d" subshell has azimuthal quantum number as l = 2 and its shape is double dum-bell.

So , Azimuthal Quantum Number is the correct index upon which the shape of a particular subshell is dependent.

• Also , the azimuthal quantum number is dependent upon the principal quantum number such as [AQN = PQN - 1].

$\star$ Hope It Helps.