JEE Main 2025 Chemistry question
For hydrogen atom, the orbital/s with lowest energy is/are : (A) 4s (B) 3p (C) 3d (D) 3d (E) 4p Choose the correct answer from the options given below :
Answer: (4)
Solution
For hydrogen atom, energy depends only on n. n=3 orbitals (3px, 3dx²-y², 3dz²) have lower energy than n=4 orbitals.