Question 49
Radioactivity and Nuclear PhysicsGamma rays are produced when
- A.high velocity electrons are abruptly stopped in metals
- B.energy changes occur within the nucleus of atoms
- C.energy changes occur within the electronic structure of atoms
- D.electrons are deflected in very strong magnetic fields.
Show the answer and explanation
Answer: B (energy changes occur within the nucleus of atoms)
Explanation
Gamma rays come from the nucleus when it drops from an excited energy state; stopping fast electrons produces X-rays instead.