Radioactivity Flashcards
1
Q
Alpha nature
A
Particle
2
Q
Alpha elec charge
A
+2
3
Q
Alpha stopped by
A
3-15 mm air; sheet of paper
4
Q
Alpha lonising ‘power’
A
Very good
5
Q
What is alpha
A
Nucleus
6
Q
Beta nature
A
Particle
7
Q
Beta elec charge
A
-1
8
Q
Beta stopped by
A
1-3 mm of AL
9
Q
Beta ionising power
A
Medium
10
Q
What is beta
A
Very fast electron
11
Q
Gamma nature
A
Wave
12
Q
Gamma elec charge
A
0
13
Q
Gamma stopped air
A
2.5cm of PB
14
Q
Gamma ionising power
A
Relatively poor
15
Q
What is gamma
A
Electromagnetic radiation
