JEE Advanced 2026 Chemistry question
X and Y are hydrogen-like species. The wavelength of light absorbed during the transition between the states with principal quantum numbers and of X is . The wavelength of light absorbed during the transition between the states with principal quantum numbers and of Y is . The lowest possible value of is .
Answer: 3
Solution
For a hydrogen-like species of nuclear charge ,
Δ E= -), λ=.
**For X ():** . **For Y ():** $Δ
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