To solve this problem, compare the half-life to the # of days:
half-life = 60 days
# of days = 360 ...
Radioactivity of decaying isotope parent; atomic number, mass and symbol of nucleus
See attached file for the formula.
If a radioactive parent isotope decays to produce a stable daughter isotope, what will be the daughter to parent ratio (D/P) after 9 half-lives? You should give your answer as a single number.
What is the product of the beta minus decay shown below? Fill in the atomic number, mass number and symbol for the resulting nucleus
C ---> ? + e- + antineutrino