MDCAT Chemistry MCQ #767

For a hydrogen atom, the energy of the nth orbit is given by En = -13.6/n^2 eV. The energy difference between n=1 and n=2 is?

MDCAT Chemistry MCQ #767

  1. Question 1

    Q1. For a hydrogen atom, the energy of the nth orbit is given by En = -13.6/n^2 eV. The energy difference between n=1 and n=2 is?

    • A) 10.2 eV
    • B) 12.09 eV
    • C) 3.4 eV
    • D) 1.89 eV

    Answer: 10.2 eV

    Explanation: ΔE = E2 - E1 = -3.4 - (-13.6) = 10.2 eV. Option B is E2.