Electron transition can be likened to moving up and down a ladder. Which of the following statements best describes how an electron transitions in an electron cloud?
A. An electron can only gain or lose energy to move between quantized energy levels. B. An electron can only gain or lose charge in integers when ions are formed. C. An electron can only change its mass in quantized amounts when it gains or loses energy. D. An electron can only change into certain types of particles when it gains or loses charge.