Explore BrainMass
Share

Understanding Radioactive Decay Calculations

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

The half-life of Iodine-126 is 60 days. If the original sample had a mass of 50.0 grams, how much is left after 360 days?

© BrainMass Inc. brainmass.com October 24, 2018, 5:20 pm ad1c9bdddf
https://brainmass.com/physics/half-life/understanding-radioactive-decay-calculations-7525

Solution Preview

To solve this problem, compare the half-life to the # of days:
half-life = 60 days
# of days = 360 ...

$2.19
See Also This Related BrainMass Solution

Radioactivity of decaying isotope parent; atomic number, mass and symbol of nucleus

See attached file for the formula.

Q1)
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.

Q2)
What is the product of the beta minus decay shown below? Fill in the atomic number, mass number and symbol for the resulting nucleus

14 ?
C ---> ? + e- + antineutrino
6 ?

View Full Posting Details