Question

How many orbitals are possible in the 4th energy level? (n=4)

Answer 1

Correct Answer :- 16 

The total number of possible orbitals associated with the fourth energy level

 For n = 4
 Hence the Number of orbitals = n²
= 4²
=16


Explanation :-

As we know that the Fourth shell has 4 subshell.Therefore for each and every subshell (Use formula  2l+1 )

 For s  subshell ⇒  1 orbitals  { as l =0 }

For p subshell  ⇒ 3 orbitals    {as l = 1}

For  d subshell ⇒ 5 orbitals    {as l = 2}

For f  subshell  ⇒ 7 orbitals    {as l =3 }

Hence the total number of orbitals is 16 .


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