A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

The half-life of a specific element was calculated to be 5,200 years. What percentage of a sample of the pure element will remain after two half-lives? 5% 10% 25% 75%

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    After every half-life, decreases the amount by 50%. If you start with 100%, how much is gone after 1 half life?

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    50

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    and then half that to get the percentage after the 2nd half life

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    0

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    No 25

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    half of 50%

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    right 25%

  8. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Would that be my answer?

  9. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

  10. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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
  • 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.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.