MDCAT Chemistry MCQ #759

The energy of an electron in the nth orbit of hydrogen is -13.6/n^2 eV. Calculate the energy of an electron in the 3rd orbit.

MDCAT Chemistry MCQ #759

  1. Question 1

    Q1. The energy of an electron in the nth orbit of hydrogen is -13.6/n^2 eV. Calculate the energy of an electron in the 3rd orbit.

    • A) -1.51 eV
    • B) -3.4 eV
    • C) -6.04 eV
    • D) -12.09 eV

    Answer: -1.51 eV

    Explanation: Energy = -13.6/3^2 = -1.51 eV. Option B is for n=2.