Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

science cards stuff

nuclear radiation

define radioactivity The process by which an unstable nucleus gives off nuclear radiation.
define Mass Number The sum of the numbers of protons and neutrons. in the nucleus of an atom.
What is Radioactivity also called? Radioactive Decay.
What is an Isotope? A isotope is an atom that has the same number of protons as the other atoms of the same element do but that has a different number of neutrons.
what can stop Alpha particles? Paper
What can stop Beta particles? Aluminum
What can stop Gamma Rays? A few centimeters of lead or a few meters of concrete.
What is a half-life? The time needed for half of a sample of radioactive substance to undergo radioactive decay.
What causes the most damage to you? Alpha Particles
Created by: riptide