if principle quantum number is 1,can azimuthal quantum number be 1 too,please tell me neet chemistry question
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
Reply
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
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