What is the wavelength and frequency of a photon emitted by a transition of an electron from a n-2 orbit to a n-l orbit? what is the wavelength and frequency of a photon emitted by transition of an electron from a n=oo orbit to a n=1 orbit? 4. using standard symbols (ie., az, e, e+, etc.) define alpha decay, β+ decay, β. decay, and electron capture showing all particles emitted.