Ionisation energy of hydrogen atom is ground state is 13.6 eV. The energy released (in eV) for third member… · ABC26PH0633

Subject: Physical Chemistry · Chapter: Atomic Structure · Topic: Atomic Structure – General · Exam: JAM 2001-2022 · Marks: 2 · Difficulty: Medium

Ionisation energy of hydrogen atom is ground state is 13.6 eV. The energy released (in eV) for third member of Balmer series is
(a)13.056
(b)2.856
(c)0.967
(d)0.306
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Third Balmer line is n = 5 → 2: ΔE = 13.6(1/4 − 1/25) = 13.6 × 0.21 = 2.856 eV.

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