What Produces Radiation? Atomic radiation is given off by atoms which have more than the normal complement of energy--"excited" atoms in the physicists' phrase. Every atom is composed of a tiny, positively charged "nucleus" surrounded by a cloud or swarm of negative electrons.
What Produces Radiation? Atomic radiation is given off by atoms which have more than the normal complement of energy--"excited" atoms in the physicists' phrase. Every atom is composed of a tiny, positively charged "nucleus" surrounded by a cloud or swarm of negative electrons.