The thing is, radioactivity is very much a game of probability. Something might decay, or, it might not. And no one can tell when exactly it will happen.
Here are some common half-life values. What types of questions do they raise for your table? Brainstorm on a whiteboard some of those ideas.
Thorium-229 7,340 years
Thorium-232 14,100,000,000 years
Lanthanium-137 60,000 years
Thorium-230 75,380 years
Oxygen-15 122.24 sec
Oxygen 19 26.464 sec
Carbon 14 3700 years
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment