QUESTION 45 To what does the belt of stability refer? O The exposure of radioactive material...
QUESTION 45 To what does the belt of stability refer? O The exposure of radioactive material to which a person can be exposed safely O The dosage in which a nuclear medicine is safe 0 The zone in which a nuclear device is not explosive O The range of heavier, stable isotopes among the elements QUESTION 46 Why aren't gamma emitter isotopes used to diagnose medical disorders? O They don't have enough penetrating power. O They are too cytotoxic. They are too short-lived in the human body. O None of the above; they are often used. QUESTION 47 How does one balance the following: 2439sAm-2593Np 24He 4 He 42H 24H