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Verified Answer & Explanation⌄

Correct Answer: A) 2.18 × 10⁻¹⁸ J atom⁻¹

Concept Explanation

For hydrogen, Eₙ = −2.18 × 10⁻¹⁸/n² J per atom, so K = 2.18 × 10⁻¹⁸ J atom⁻¹.

Topic: Atomic Structure MCQs (STB)Practice more Atomic Structure MCQs (STB) MCQs →