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
U
U
R
A
N
I
U
M
M
T
J
N
O
R
T
U
E
N
W
G
M
F
S
Z
J
E
U
C
O
N
T
R
O
L
R
O
D
S
F
N
E
U
K
H
A
V
R
K
C
B
B
O
K
U
Q
F
U
I
Q
U
R
U
G
X
S
Q
A
F
Z
D
A
N
O
D
K
O
S
S
U
N
I
O
V
R
X
R
D
F
K
S
M
X
C
S
L
S
M
U
U
O
L
U
A
R
U
A
I
T
I
C
M
T
F
V
I
E
F
T
A
L
L
W
A
O
E
A
A
A
H
A
A
A
I
O
Q
C
U
P
Q
Y
I
A
E
B
R
I
T
A
E
D
G
F
N
J
E
X
S
J
U
O
M
L
O
E
H
S
I
A
K
P
I
W
B
I
U
I
I
X
A
E
F
F
Y
O
S
N
O
A
F
S
R
Y
Y
I
I
I
O
N
H
I
I
I
O
M
R
R
N
V
O
U
Q
P
A
O
L
U
N
L
I
O
T
I
F
E
O
A
I
F
J
T
A
Q
O
C
N
F
Y
C
O
T
J
Y
A
T
K
O
E
W
W
O
V
L
I
L
J
R
P
F
U
L
H
C
C
G
L
A
V
X
N
E
X
A
K
V
E
I
A
I
P
Z
T
A
A
F
V
M
V
U
N
H
I
N
T
S
I
I
L
G
I
I
E
A
A
E
Z
S
U
E
N
W
W
P
U
O
A
E
K
E
O
R
I
T
F
L
R
T
A
U
E
R
S
J
G
I
O
G
A
N
X
W
E
Y
A
L
P
A
V
J
A
T
C
H
A
O
U
W
R
F
T
B
Q