1
UNSTABLENUCLEUS
2
CHAINREACTION
3
CONTROLRODS
4
RADIATION
5
MILLIREM
6
HALFLIFE
7
REACTOR
8
NEUTRON
9
ISOTOPE
10
FISSION
11
URANIUM
12
FUSION
13
GAMMA
14
ALPHA
15
BETA
I
U
R
A
N
I
U
M
P
K
T
N
O
R
T
U
E
N
A
X
M
A
K
N
A
L
Q
C
O
N
T
R
O
L
R
O
D
S
F
O
E
H
I
U
J
U
R
D
Z
A
O
A
G
U
U
E
J
I
J
I
R
O
Q
E
V
C
A
O
U
F
A
N
F
V
V
K
S
E
X
R
I
C
C
B
A
L
D
V
O
S
M
X
M
J
V
S
U
H
B
Q
L
A
G
O
F
A
I
T
L
C
M
A
A
O
I
Q
F
F
I
B
L
K
U
I
M
A
A
E
H
D
A
L
A
O
U
P
U
E
R
U
I
X
U
B
D
I
T
A
Q
I
G
I
N
W
I
M
S
E
T
I
M
L
L
E
U
Y
I
B
C
F
F
O
O
H
H
S
I
U
H
E
V
F
E
E
S
N
O
D
E
Y
E
M
X
A
I
C
O
N
I
I
M
U
O
U
R
R
N
V
J
V
Q
C
B
U
B
U
N
L
J
S
T
M
M
E
O
O
O
U
H
S
N
J
S
C
H
F
X
U
O
E
U
A
A
T
M
I
L
O
U
N
U
L
A
L
X
T
P
I
N
K
H
C
C
V
E
U
N
I
N
E
O
A
I
P
E
M
Z
D
P
E
T
A
O
V
A
O
G
U
W
H
I
E
W
G
U
J
L
R
S
I
E
B
A
A
I
S
G
J
L
S
L
C
O
I
A
O
S
A
O
R
Y
T
Z
C
Q
A
E
I
I
X
X
Q
X
A
X
S
A
N
R
S
E
J
S
O
Z
J
U
K
G
X
Y
P
R
A
K
D
H
H
O
B
Y