Question

Which of the following transitions of electrons in the hydrogen
atom will emit maximum energy ?
(a) n₅ → n₄ (b) n₄ → n₃
(c) n₃ → n₂ (d) all will emit same energy

Answer 1

All the transitions will emit same energy.

Option (D) is correct.

Explanation:

• Energy of all (s, p, d, f) sub shells present in the same orbit in a hydrogen atom have same energy because they are degenerate orbitals.
• So energy emission in 4f → 2s, 4d → 2p, 4p → 2s transitions have same energy because these transition are from orbit 4 to orbit 2.
• Thus all the transitions will emit same energy.

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