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JEE Main2015ChemistryStructure of AtomActual

Which of the following is the energy of a possible excited state of hydrogen?

Options

  1. A+ 6.8 eV
  2. B+ 13.6 eV
  3. C- 6.8 eV
  4. D- 3.4 eV

Correct answer

D. - 3.4 eV

Step-by-step solution

E n = − 13.6 × Z 2 n 2 e V Z = 1 f o r H . E n = - 13.6 n 2 eV Where n = 2 ⇒ E 2 = - 3.40 eV

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