Name___________________________________ Per _____
Nuclear decay
Fill in the blanks to complete the following nuclear reactions. Use a periodic table.
1.
42
19
2.
239
__
3.
235
92
4.
1
1
5.
6
3
6.
27
13
7.
9
4
8.
37
___
9.
________ +
10.
238
92
11.
99
43
12.
226
88
13.
__________ Æ
14.
27
13
15.
235
92
1
0
n Æ 3 01n +
16.
235
92
1
0
n Æ
17.
241
95
Am +
18.
214
84
Po + 2 24 He + 2 −10 e Æ __________
0
−1
K Æ
e + ____________
4
2
Pu Æ
He + ________
U Æ __________ +
H +
Li +
3
1
Th
H Æ __________
1
0
1
1
He Æ
e 24 He + _________
30
15
P + _________
0
+1
4
2
1
0
n Æ
142
56
4
2
0
−1
91
36
Kr + 3 01n
4
2
1
0
n
4
2
He
e
He + _________
4
2
He +
Al + _________ Æ
U +
Ba +
He Æ __________ +
Ra Æ
He
e + __________
Tc Æ _____ +
U +
4
2
H Æ __________ +
K Æ
U +
0
−1
n Æ
4
2
Al +
Be +
231
90
139
53
208
81
Tl
24
11
Na +
139
56
Ba + _________
I + 2 01n + _________
He Æ 2 01n +
_________