CHAPTER 4. ATOMICNUCLEI 4.10
(a) The number of protons in the element remains unchanged.
(b) The number of nucleons after decay is 212.
(c) The number of protons in the element after decay is 82.
(d) The end product after decay is Po-208.
- 20 g of sodium-24 undergoes radioactive decay. Calculate the percentage of the
original sample that remains after 60 hours.
- Nuclear physics canbe controversial. Manypeople argue that studying the nucleus
has led to devastation and huge loss of life. Others would argue that thebenefits of
nuclear physics far outweigh the negative thingsthat have come from it.
(a) Outline some of theways in which nuclearphysics has been used in negative
ways.
(b) Outline some of thebenefits that have comefrom nuclear physics.
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