When the U-235 nucleus is struck with a neutron,the Zn-72 and Sm-160 nuclei are produced along with some neutrons.How many neutrons are emitted?
A)2
B)3
C)4
D)5
E)6

Question

Quizplus · Accepted Answer

The question does not provide enough information to determine exactly how many neutrons are emitted. However, we know that zinc-72 has a neutron number of 40 while Sm-160 has a neutron number of 98. The total neutron number before the reaction was 235 (since U-235 was used) and after the reaction it is 138 (since Zn-72 and Sm-160 were produced). Therefore, the number of neutrons emitted during the reaction is:

235 - 138 = 97

However, the question asks for the number of neutrons emitted along with Zn-72 and Sm-160. We don't know how many neutrons were emitted at the same time as each of these nuclei, but we do know that the total number of neutrons emitted was 97. Therefore, the best choice is C, 4, since it is between the possible range of 2-6 neutrons emitted along with Zn-72 and Sm-160.

When the U-235 Nucleus Is Struck with a Neutron,the Zn-72