engineering physics MCQ #343

The ionization energy of hydrogen is 13.6 eV. What is the energy required to remove an electron from n = 2?

engineering physics MCQ #343

  1. Question 1

    Q1. The ionization energy of hydrogen is 13.6 eV. What is the energy required to remove an electron from n = 2?

    • A) 3.4 eV
    • B) 6.8 eV
    • C) 13.6 eV
    • D) 10.2 eV

    Answer: 3.4 eV

    Explanation: Energy of n = 2 is E2 = -13.6 / 2² = -3.4 eV. Energy required to remove electron is 3.4 eV.