Radioactivity
Name: ______________________ Date: ____________
I
H
Y
Q
J
F
N
U
C
L
E
U
S
O
Z
A
C
I
O
N
I
S
I
N
G
Q
N
L
B
E
T
A
B
U
J
H
N
X
Y
O
P
V
I
W
E
L
U
X
C
S
T
Z
Z
A
I
K
P
F
R
M
Z
C
H
K
I
N
O
G
D
M
I
L
M
M
B
B
O
R
T
M
Z
T
P
R
W
L
X
D
L
F
N
P
Y
D
T
R
C
Y
S
C
B
F
A
E
H
O
T
L
G
V
U
V
O
T
J
P
H
E
O
L
O
A
N
D
A
I
L
P
G
M
N
V
L
A
D
R
U
Z
H
D
M
Y
I
F
N
F
A
R
S
H
R
I
N
M
J
O
M
K
G
G
H
E
N
G
K
P
F
G
S
E
I
O
A
L
O
A
I
R
O
V
N
R
O
B
E
M
U
N
G
J
M
R
J
I
R
V
W
E
V
G
V
U
K
T
I
U
G
U
N
U
T
P
Z
P
T
A
S
I
Y
A
R
U
Y
C
D
G
C
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Q
A
K
I
G
L
M
H
P
O
M
T
Q
L
E
P
I
P
C
G
C
E
Y
P
C
A
N
D
N
A
L
E
L
R
C
W
Q
H
V
L
S
Q
A
S
W
N
E
B
C
I
R
R
A
D
I
A
T
I
O
N
K
- absorbed
- air
- alpha
- aluminium
- beta
- charge
- electromagnetic
- electron
- gamma
- half-life
- helium
- ion
- ionising
- lead
- neutrons
- nuclei
- nucleus
- paper
- protons
- radiation