2317764
Description
Flashcards by Aimee Shanks, updated more than 1 year ago
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Created by Aimee Shanks
over 9 years ago
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| Question | Answer |
| Definition of isotope: | Different forms of same element with the SAME number of PROTONS but different number of NEUTRONS |
| Most elements have different isotopes but theres one or two ____________ ones. The other isotopes tend to be __________, meaning they decay into other elements and give out ___________. | stable radioactive radiation |
| Radioactivity is completely random. Radioactive substances give out radioactivity from nuclei of atoms. | You cannot do anything to make decay happen. Cannot predict which ones will decay. |
| Definition of background radiation: 3 things we recieve it from: | -radiation that is present at all times. -unstable isotopes everywhere(air,rocks,food), radiation from space called cosmic rays,man made sources such as dumped nuclear waste |
| Radiation dose depends on ___________ and _____________. How likely you are to suffer depends on type of ___________ and ___________. The higher the dose the more likely you are to develop cancer. | location occupation radiation amount |
| 3 examples where radiation dose is high: | -areas with certain underground rocks e.g granite, especially if they produce radon gas which gets trapped in houses -high altitudes in planes, this increases background radiation due to more exposure to cosmic rays -underground e.g mines, increases because of certain rocks |
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