問題詳情

17. An energy of 13.6 eV is needed to ionize an electron from the ground state of a hydrogen atom. What wavelength in nm is needed if a photon accomplishes this task?
(A) 60
(B) 80
(C) 70
(D) 90

參考答案

答案：D
難度：非常困難0
統計：A(0),B(2),C(3),D(0),E(0)