Recent content by pyo

Great thanks !

Hey i am doing some studying and when it comes to the subject of nuclear decays it says that when an electron and positron annihilate at rest they produce two photons with equal energys. Can someone try to explain to me why the photons have equal energies and how come there must be two photons...

Hey i was just wondering if anyone could help me out and shed some light into " why is B^- decay (emission of an electron) far more common among the heavy elements than the B^+ (emission of a positron) or electron capture decays?" I am looking at a plot of Z vs. N for various nuclei and believe...