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Question 600223
JEE Chemistry · Hard

Atomic Structure: Energy calculation MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Energy calculationHardQuestion 600223

Question

The energy of the electron in the third Bohr orbit of He⁺ (Z=2) is:
  1. A
    -6.04 eV
    Correct
  2. B
    -13.6 eV
  3. C
    -3.4 eV
  4. D
    -1.51 eV

Correct answer

-6.04 eV

Explanation

En = −13.6Z²/n² = −13.6×4/9 = −54.4/9 ≈ −6.04 eV.

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