Which of the following statements is relation to the hydrogen atom is correct?

Options

A. 3s, 3p and 3d-orbitals all have the same energy
B. 3s and 3p-orbitals are of lower energy than 3-obitals are of lower eneryg than 3d-orbital
C. 3p-orbital is lower in energy than 3d orbital
D. 3s-orbital is lower in energy than 3p orbital

Answer

A

Explanation

Hydrogen atom is in `1s^(1)` and these 3s, 3p and 3d-orbitals will have same energy w.r.t. 1s-orbital.