A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
What fraction of a given sample of radioactive nuclide remains after four half lives??
anonymous
 3 years ago
What fraction of a given sample of radioactive nuclide remains after four half lives??

This Question is Closed

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.01 halflife: 1/2 left 2: half of that, or 1/4 3: half of that, or 1/8 4: half of that, or 1/16 In general: (1/2)^x, where x is the number of halflives.

jim_thompson5910
 3 years ago
Best ResponseYou've already chosen the best response.0After one half life, half of the substance is gone. After another half life, half of the remaining amount is gone. So you have (1/2)*(1/2) = 1/4 of the amount left over After another half life, half of the remaining amount is gone. So you have (1/2)*(1/2)*(1/2) = 1/8 of the amount left over See where this is going?
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.