Radiation and decay
Unit 14 - Nuclear Forces
Sign in to Google to save your progress. Learn more
Full Name *
1. Alpha particles are composed (made up) of two ______________ and two ______________ which is the same as the nucleus of a Helium atom.
2. Alpha particles are different from Helium atoms in that they do not have any ______________, so it has an overall charge of 2+.
3. Alpha particles are relatively large and cannot penetrate very far into other materials. In the air it can only travel a few ______________ and alpha particles can be absorbed by a single sheet of ______________.
4. Beta particles are basically a lone ______________ with a charge or 1- and virtually no mass. The beta particle is created from a ______________ that decays into a proton and electron; with the proton staying in the nucleus and the electron being ejected.
5. Beta particles are more penetrating than alpha particles, penetrating through several meters of ______________ and about 5 millimeters of ______________.
6. Gamma Rays are not particles, but waves of ______________ radiation.
7. Gamma Rays can penetrate really far into materials and it takes thick sheets of ______________ or multiple meters of ______________ to stop.
8. Radiation is very dangerous because it can mutate our ______________, causing cancer and killing cells.
9. Radiation has risks, but it also has benefits. Radiation can also be used to fight cancer. Treatments from outside the body use ______________ to target cancerous cells through the skin. Working from inside the body, doctors use materials that emit ______________. These sources are placed directly next to cancer cells, so that only targeted areas are affected.
Submit
Clear form
Never submit passwords through Google Forms.
This content is neither created nor endorsed by Google. Report Abuse - Terms of Service - Privacy Policy
Google Forms