24. How do nuclei with too many neutrons normally decay? How do
the nuclear charge and mass number change, and how does the position
of the nucleus on a p-n plot change?
How do nuclei with too many neutrons and protons ordinarily decay?
Show the change in nuclear charge and mass number on a p-n plot.
26. What happens if an unstable nucleus decays to another nucleus,
which itself is unstable?
27. What is the half-life of an unstable element? In how many half-lives
will the amount of an unstable element fall to less than 10% of
its original value? In how many half-life periods will it disappear
28. How does the ratio of carbon isotopes tell us the age of an