1. From the following nuclear reaction equations, find X: (10)
(a)
Au H X He 4
2
2
1
197
79
(b)
Pb 210
82
Z
Y
X
(c)
U He
e X
0
1
4
2
238
92 8 6
(d)
Bn X Li 7
3
10
5
,
(e)
Nn X C
14
6
14
7
,
2. Find the energy release in the reaction
Lin H
3
1
6
3
,
. Note that the atomic masses for each
nucleus can be found from the internet. (10)
3. The nuclear reaction in question 1 (d) absorbs 4.8773 MeV of energy in order for the
reaction to occur. Find the mass of
Au 197
79
in a.m.u. The atomic masses of other element
can be found from the internet (Wikipedia). (10)
4. Determine the Q-value for the following reaction. Which reaction occurs naturally?
(a)
Ca e K
40
19
0
1
40
20
(b)
Ru He Mo 94
42
4
2
98
44
(c)
Nd He Ce 140
58
4
2
144
60
(20)