Which of the following is/are correct with respect to the energy of atomic orbitals of a hydrogen atom?
(A) $ 1s<2s<2p<3d<4s $
(B) $ 1s<2s = 2p<3s = 3p $
(C) $ 1s<2s<2p<3s<3p $
(D) $ 1s<2s<4s<3d $
Choose the correct answer from the options given below:

Question

The wavelength of spectral line obtained in the spectrum of Li$^{2+}$ ion, when the transition takes place between two levels whose sum is 4 and difference is 2, is

Answer 1

For hydrogen-like atoms, orbital energy increases with the principal quantum number (n). Within a given shell, orbitals with higher angular momentum (l) possess greater energy.

(A) is correct: $ 1s<2s<2p<3d<4s $.
(B) is incorrect due to $ 2s eq 2p $ and $ 3s eq 3p $.
(C) is correct, adhering to the established orbital order for hydrogen.
(D) is incorrect; $ 4s $ has lower energy than $ 3d $.

The correct options are (A) and (C).

Which of the following is/are correct with respect to the energy of atomic orbitals of a hydrogen atom?
(A) \( 1s<2s<2p<3d<4s \)
(B) \( 1s<2s = 2p<3s = 3p \)
(C) \( 1s<2s<2p<3s<3p \)
(D) \( 1s<2s<4s<3d \)
Choose the correct answer from the options given below:

Show Hint

The Correct Option is A

Solution and Explanation

Top Questions on Atomic Structure

Questions Asked in JEE Main exam

Which of the following is/are correct with respect to the energy of atomic orbitals of a hydrogen atom? (A) \( 1s<2s<2p<3d<4s \) (B) \( 1s<2s = 2p<3s = 3p \) (C) \( 1s<2s<2p<3s<3p \) (D) \( 1s<2s<4s<3d \) Choose the correct answer from the options given below: