P11 Radioactivity Flashcards
1
Q
Alpha’s symbol
A
a
2
Q
Beta’s symbol
A
B
3
Q
Gamma’s symbol
A
Y
4
Q
Alpha nature
A
Particle
5
Q
Beta nature
A
Particle
6
Q
Gamma nature
A
Wave
7
Q
Alpha elec charge
A
+2
8
Q
Beta elec charge
A
-1
9
Q
Gamma elec charge
A
0
10
Q
Alpha stopped by
A
3-15mm air . Sheet of paper
11
Q
Beta stopped by
A
1-3mm Al
12
Q
Gamma stopped by
A
2.5Pb cm (led)
13
Q
Alpha losing power
A
Very good
14
Q
Beta losing power
A
Medium
15
Q
Gamma
A
Relatively poor
