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Nuclear Fission

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by

Amanda Lynch

on 16 November 2015

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Transcript of Nuclear Fission

Starter Activity
Describe a medical use of radiation based on the fact that radiation can destroy cells.
Fission
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.
Chain reaction
A chain reaction is a series of chemical reactions in which the product of one is a reactant in the next.
Fission
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.
Nuclear Fission
Learning Intentions
To understand the process of Nuclear Fission.
To be able to define what a chain reaction is.
Success Criteria

Write down three things you have learnt today and stick on the whiteboard as you are leaving please.
An out of control chain reaction.
Full transcript