Question

In third principal quantum number, the total number
of orbitals will be
(1) 16
(2) 9
(3) 4
(4) 1
100 for mortion of electron​

Answer 1

i third quantum number means third shelle of atom

which have electronic configuration 3S^2,3p^6 3D^10

orbitals in s=1

in p=3

in d=5

so there will be 9

orbitals orbitals in third principal quantum numbernumbe

hope,it helps you

follow me for further help