11. Conservation of Mass,       Charge, and Energy   Previous PageNext Page
       QUESTIONS

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?

25. 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 completely?

28. How does the ratio of carbon isotopes tell us the age of an object?

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