Then we got the neutral charged patricles, the neutrinos, and the same heavier brothers myon and tau neutrinos. They pop on existence when suns make their fusion process, when a protons turns into a neutron because of a quark change, it has less mass and converts it into these possible particles, if you point your thumb on the sun there are moving round about 65 million neutrinos through you thumb since they got not electrical charge they dont have to react with your atoms. Thanks god for that hehe;). Otherwise I would somehow take some presence from them. The myon and tau electron got the same charge and properties as the elcectron their just heavier in the electricfield mass. Since the light makes some sort of space fundament in which we live, it also carries the electromagnetic spectrum, it can make electrons jump from the lowest level to higher ones. As you might know from chemics with different energy levels.