Radiation
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15 Terms
1
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Alpha
2
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Gamma
(no change)
3
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Beta
4
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What is alpha made of?
2 protons and 2 neutrons
5
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What is beta made of?
1 electron
6
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What is gamma made of?
Electromagnetic ray
7
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What is alpha stopped by?
Air/paper
8
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What is beta stopped by?
A few cm of aluminium
9
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What is gamma stopped by?
Almost completely stopped by lead
10
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What ionising power does alpha have?
High ionising power
11
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What ionising power does beta have?
Medium ionising power
12
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What ionising power does gamma have?
Low ionising power
13
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Alpha description
Has a helium nucleus and is made from 2 protons and 2 neutrons
14
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Beta description
High energy and fast moving electron
15
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Gamma description
Electromagnetic ray
Note 
Flashcards (32)