Radioactivity Flashcards
1
Q
Fission
A
Neutron hits atom and it separates into two smaller nuclei. Causes two or more nuclei to be released causing a chain reaction.
2
Q
Fusion
A
Small nuclei fuse to form large nuclei energy is released.
3
Q
Advantages of fusion
A
Clean, safe, less radioactive waste
4
Q
Advantages of fission
A
Reliable, produces large amounts of energy
5
Q
Disadvantages of fission
A
Radioactive waste produced
6
Q
Medical uses
A
Injected radioactive sources car be used as tracers. An isotope emits gamma rays that easily pass through the body. Rays are detects in an X-ray machine or gamma camera
7
Q
Finding leaks in pipes
A
Gamma source added to water. Higher levels detected where leaks in pipes.
8
Q
Dangers of radiation
A
Can cause cancer, burn skin, leukaemia or blood diseases, damage DNA
