Atomic StructureHard

Question

Suppose that a hypothetical atom gives a red, green, blue and violet line spectrum. Which jump according to figure would give off the red spectral line.

Options

A.3 → 1

B.2 → 1

C.4 → 1

D.3 → 2

Solution

According to energy, E_{4 → 1} > E_{3 → 1} > E_{2 → 1} > E_{3 → 2} .
According to energy, Violet > Blue > Green > Red.
∴ Red line ⇒ 3 → 2 transition.

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