Characteristic K x-radiation of an element is caused by:
A)stoppage of electrons by the nucleus
B)scattering of the incident radiation with a change of wavelength
C)ejection of an electron from an outer shell
D)transition of an electron to the innermost orbit
E)none of the above

Question

Quizplus · Accepted Answer

Characteristic K x-radiation of an element is caused by the transition of an electron to the innermost orbit, where the vacancy is filled by an electron from a higher energy level, resulting in the emission of x-rays with a characteristic energy corresponding to the energy difference between the two levels involved in the transition.

Characteristic K X-Radiation of an Element Is Caused By