AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

Radiation

Radioactivity and Nuclear Energy Notes

Subject: 
Rating: 
0
No votes yet

Radioactive Decay Activation Energy (Ea): The threshold energy that must be overcome to produce a chemical reaction Electromagnetic Radiation: Radiant energy that exhibits wavelike behavior and travels through space at the speed of light in a vacuum Radioisotope: a radioactive isotope Many nuclei are radioactive Radioactive: Refers to a nucleus that spontaneously decomposes to form a different nucleus Over 85% of all known nuclides are radioactive Nuclear Equation: an equation representing radioactive decay Types of Radioactive (Nuclear) Decay (The spontaneous decomposition of a nucleus to form a different nucleus): Alpha Decay Alpha () particle shoots out from nucleus equivalent to helium-4 Beta Decay Beta () particle shoots out from nucleus equivalent to an electron Gamma Decay

Holt Earth Science Chapter 17, Section 17.4

Rating: 
0
No votes yet

Heating the Atmosphere A. What Happens to Incoming Solar Radiation? When radiation strikes an object, 3 things happen: some of the energy is absorbed by the object (converted to heat+temperature rises), some substances (water+air) are transparent to certain radiation wavelengths + transmit energy, and some radiation is bounced off the object without absorption/transmission. Reflection + scattering are responsible for redirected solar radiation. Out of the total solar radiation from the sun, 50% is absorbed by the land/sea, 20% is absorbed by the atmosphere/clouds, 5% is reflected from the land/sea surface, 5% is backscattered to space by the atmosphere, 20% is reflected by the clouds (in total, 30% is lost to space by reflection/scattering). B. Reflection and Scattering

Alpha and Beta Particles

Subject: 
Rating: 
0
No votes yet
Alpha and Beta particles can be both emitted and bombarded with other elements. If a beta particle is a emitted then the original element gains a proton. If a Alpha particle is emitted then the original element looses two protons. And vice versa if the particle is bombared.
Subscribe to RSS - Radiation

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!