Radioactive decay
These are my notes from the end of topic test
- Created by: That Vet Student
- Created on: 23-10-18 19:12
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- Radioactive Decay
- Sub atomic particles
- electron is negatively
- mas = 1/2000
- proton is positive
- Untitled
- neutron has no charge
- mass = 1
- electron is negatively
- Isotopes are atoms of the same element. They have the same number of protons and electrons, but a different number of nuetrons
- Alpha, Beta and Gamma
- Alpha
- Least penetrating and least dangerous outside of body but most dangerous inside of body
- Shortest range of radiation and is affected by a magnetic field
- Beta
- is affected by a magnetic field
- Gamma
- Most penetrating and most dangerous outside of body but least dangerous inside
- Used as a cancer treatment
- Longest range of radiation and is not affected by a magnetic field
- Alpha
- Half-life
- The radioactivity of a source decreases with time the nuclei are unstable and decay
- Half-life is a measure of how long it takes for the radioactive substance to decrease by half
- Nuclear fission/fusion
- fission = split
- A neutron is absorbed by a uranium nucleus, making it unstable. The uranium isotope then splits off into a barium,krypton, 3 neutrons and energy
- fusion = joined
- fission = split
- Sub atomic particles
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