engineering chemistry MCQ #972

The energy of an electron in a hydrogen atom is -13.6 eV. The potential energy of the electron is

engineering chemistry MCQ #972

  1. Question 1

    Q1. The energy of an electron in a hydrogen atom is -13.6 eV. The potential energy of the electron is

    • A) -27.2 eV
    • B) -13.6 eV
    • C) 27.2 eV
    • D) 13.6 eV

    Answer: -27.2 eV

    Explanation: Using E = (1/2)U, U = 2E = 2 * (-13.6) = -27.2 eV.