1 / 6

Half- Life

Half- Life. Chapter 4.1. Finding a Date by Decay . Finding the age of something thousands of years old can be difficult…. Scientists were able to determine the age of the Iceman. 5,300 years old Used the decay of radioactive carbon. Carbon 14- It’s in You!!!!.

sybil
Télécharger la présentation

Half- Life

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Half- Life Chapter 4.1

  2. Finding a Date by Decay • Finding the age of something thousands of years old can be difficult…. • Scientists were able to determine the age of the Iceman. • 5,300 years old • Used the decay of radioactive carbon

  3. Carbon 14- It’s in You!!!! • Carbon atom is in every living thing • Some are radioactive carbon 14 • When an organism dies carbon 14 begins to decay

  4. A steady Rate of Decay • Every 5,370 years is the half life of carbon 14 • Half Life: the amount of time it takes one-half of the nuclei of a radioactive isotope to decay

  5. Half-Life Original Sample One half-life Two half-lives Three half-lives Contains a certain One-half of the One-fourth of One-eight of the Amount of radioactive sample remains the sample remains sample remains

  6. Half life Sample Problem • One isotope of Iodine has a half-life of 8 days. That is, after 8 days, ½ of all the atoms in a given sample of the isotope will have undergone nuclear decay. Using a 1 gram sample. How much will remain after 8,16, and 32 days?

More Related