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Transcript of Nuclear Fission
Describe a medical use of radiation based on the fact that radiation can destroy cells.
The process of splitting a nucleus is called nuclear fission
Uranium or plutonium isotopes are normally used because their atoms have relatively large nuclei that are easy to split, especially when hit by neutrons.
A chain reaction is a series of chemical reactions in which the product of one is a reactant in the next.
When an isotope is hit by a neutron, the following happens:
1. the nucleus splits into two smaller nuclei, which are radioactive
2. three more neutrons are released
3. some energy is released
The two smaller nuclei and the released neutrons are called the products.
To understand the process of Nuclear Fission.
To be able to define what a chain reaction is.
Write down three things you have learnt today and stick on the whiteboard as you are leaving please.
An out of control chain reaction.