Homework Help: Physics check

Posted by Bev on Thursday, April 17, 2008 at 8:37pm.

List the three types of radioactivity by increasing ability to penetrate matter.
1 gamma rays
2 beta rays
3 alpha rays ?

Physics check - bobpursley, Thursday, April 17, 2008 at 10:36pm
http://www.gcse.com/radio/rad7.htm

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