Radiation Flashcards
1
Q
Nature of alpha
A
Particle
2
Q
Nature of beta
A
Particle
3
Q
Nature of gamma
A
Wave
4
Q
Elec charge of alpha
A
+2
5
Q
Elec charge of beta
A
-1
6
Q
Elec charge of gamma
A
0
7
Q
Alpha stopped by
A
3-15mm air or paper
8
Q
Beta stopped by
A
1-3 mm aliminium
9
Q
Gamma stopped by
A
2.5 cm lead
10
Q
Alpha ionising power
A
Very good
11
Q
Beta ionising power
A
Medium
12
Q
Gamma ionising power
A
Relatively poor
13
Q
What is Alpha
A
Helium nucleus
14
Q
What is beta
A
Very fast electron
15
Q
What is gamma
A
electromagnetic radiation
