1.

The orbital angular momentum quantum number of the state `S_(2)` is

Answer» Correct Answer - B
The state `S_(2)` has one radial node and its energy is equal to the ground state energy of the hydrogen atom. This is possible only for 3p orbital.
3p orbital has one radial node,
`n=3,l=1rArr(n-l-1)=(3-1-1)=1
E=E_(H)xx(Z^(2))/(n^(2))=E_(H)xx(3^(2))/(3^(2))=E_(H)`
Azimuthal quantum number for the state `S_(2)`, l = 1.


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