The total energy of an electron in an atom in an orbit is -3.4 eV. Its kinetic and potential energies are, respectively :

1. \(-3.4\) eV, \(-3.4\) eV

2. \(-3.4\) eV, \(-6.8\) eV

3. 3.4 eV, \(-6.8\) eV

4. 3.4 eV, 3.4 eV

Doubtly Asked 30 Oct 2026 NEET UG 2019 Practice test neet Save WhatsApp Report

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Answer: 3. 3.4 eV, \(-6.8\) eV

For an electron in a bound orbit, \(KE=-E\) and \(PE=2E\).

With \(E=-3.4\) eV: \(KE=+3.4\) eV and \(PE=-6.8\) eV. Check: \(3.4-6.8=-3.4\) eV.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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