types of radiation Flashcards
1
Q
What are the three types of radiation
A
Alpha,beta and gamma
2
Q
What is alpha made up of
A
2 neutrons and 2 protons
3
Q
What is beta made up of
A
Electron
4
Q
What is gamma made up of
A
E.m. waves
5
Q
What charge does alpha have
A
2+
6
Q
What charge does beta have
A
1-
7
Q
What charge does gamma have
A
0
8
Q
Ionising power for alpha
A
Low
9
Q
Ionisng power for beta
A
Medium
10
Q
Ionising power for gamma
A
High
11
Q
What is alpha stopped by
A
Paper / skin
12
Q
What is beta stopped by
A
Life metal eg . Aluminium
13
Q
What is gamma stopped by
A
Very heavy metal eg. Lead
14
Q
Alphas range in air
A
10 cm
15
Q
Betas range in air
A
2 m
