Atomic energy level transition

00:00 1 marks

The diagram shows energy levels for an atom. Which transition corresponds to the emission of a photon with the longest wavelength?

A

Transition from n=4 to n=3
B

Transition from n=2 to n=1
C

Transition from n=4 to n=1
D

Transition from n=3 to n=2

Hint Hint

Hint

Recall that wavelength is inversely proportional to the energy difference (ΔE = E_upper − E_lower and λ = hc/ΔE). The smallest energy difference yields the longest wavelength.

Answer Answer
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Answer Answer

Complete Answer

Transition from n=4 to n=3

Mark Scheme Mark Scheme

Answer Explanation Answer Explanation

Examiner Tips Examiner Tips

Common Errors Common Errors

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