A) Explain radioactivity in terms of an unstable nucleus.
b) What are the differences between alpha particles, beta particles, and gamma rays?
c) Fluorine-18 has a half-life of 110 min. If 200 mg of fluorine-18 is stored at 6:30 am, how many mg of the isotope is till active at noon?
d) Indicate whether the following represent fission, fusion, or both:
i) Very high temperatures are required to initiate the reaction
ii) Lesser quantity of radioactive waste is generated
iii) Large amounts of energy are released.