Question:

For hydrogen atom, the orbital/s with lowest energy is/are:

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The \( 1s \) orbital is the lowest energy orbital for the hydrogen atom.
Updated On: Mar 18, 2025
  • (A) only
  • (B), (C), and (D) only
  • (B) only
  • (A) and (E) only
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The Correct Option is A

Solution and Explanation

- For the hydrogen atom, the orbital with the lowest energy is the \( 1s \) orbital. 
Among the options provided, (A) corresponds to the \( 4s \) orbital, which is the lowest energy orbital for hydrogen. 
Final Answer: Option (1).

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