Hello Shreya,

No. If Principle quantum no. is 1 then, Azimuthal Quantum number could never be 1. For, principle quantum no. equal to 1, there is only one value of Azimuthal quantum number and that is 0

The reason behind this is simple.

The Principle quantum number is denoted by 'n' and it represents the no. of shell in which electron revolves. So, 'n' varies from 1 to infinity.

Azimuthal quantum number determines the no. of subshell, which has a value ranging from 0 to 'n-1' .

So, for n = 1, i.e., Principle quantum no. = 1,

Azimuthal quantum number has value 0 to ( 1 - 1 ) , i.e., 0.

So, if principle quantum number is 1 then azimuthal quantum number can never be 1.

Best Wishes,.

Hello!!

Shreya no you can't have azimuthal quantum number equal to 1,see formula for azimuthal quantum number is n-1 where n is your principal quantum number.for example if your principle quantum number is 2 your azimuthal quantum number will be 0,1.

Thank you

Hello there! !!!!!

Greetings! !!!!

The azimuthal quantum number is a quantum number for an atomic orbital that determines its orbital angular momentum and describes the shape of the orbital.
Now,
We know that, for a given value of n (principal Quantum number ) , azimuthal quantum number i.e can have values from 0 to n-1 .

Now as per question mentioned by you, n=1 i.e principal Quantum number is 1.

Then , maximum of l i.e azimuthal quantum number is n-1 =1-1=0 .

Thus,for principal Quantum number 1 , azimuthal quantum number cannot be 1.


Thankyou