For hydrogen atom, the orbital/s with lowest energy is/are :
(A) 4 s
(B) $3 p_{x}$
(C) $3 d_{x^{2}-y^{2}}$
(D) $3 d_{z^{2}}$
(E) $4 p_{z}$
Choose the correct answer from the options given below :
Select the correct option:
A
(A) and (E) only
B
(A) only
C
(B) only
D
(B), (C) and (D) only
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
In hydrogen atom the orbitals in a shell are degenerate means energy depends only on ' n '
$$
\therefore \mathrm{E}_{3 \mathrm{p}_{\mathrm{x}}}=\mathrm{E}_{3 \mathrm{~d}_{x^{2}-y^{2}}}=\mathrm{E}_{3 \mathrm{~d}_{x^{2}}}
$$
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