Problem 57
The fission of uranium- 235 produces 2.4 neutrons per nucleus. Why is there a fractional value for the number of neutrons released?
Problem 58
Why must uranium ore be enriched in U-235 before it can be used in the fuel rods of a nuclear reactor?
Problem 59
How many neutrons are produced from the following fission reaction? $$ { }_{92}^{235} \mathrm{U}+{ }_{0}^{1} \mathrm{n} \longrightarrow{ }_{54}^{144} \mathrm{Xe}+{ }_{38}^{90} \mathrm{Sr}+{ }_{0}^{1} \mathrm{n} $$
Problem 60
How many neutrons are produced from the following fission reaction? $$ { }_{92}^{235} \mathrm{U}+{ }_{0}^{1} \mathrm{n} \longrightarrow{ }_{56}^{142} \mathrm{Ba}+{ }_{36}^{91} \mathrm{Kr}+{ }_{0}^{1} \mathrm{n} $$
Problem 61
How many neutrons are produced from the following fission reaction? $$ { }_{94}^{239} \mathrm{Pu}+{ }_{0}^{1} \mathrm{n} \longrightarrow{ }_{55}^{137} \mathrm{Cs}+{ }_{39}^{100} \mathrm{Y}+{ }_{0}^{1} \mathrm{n} $$
Problem 63
What nuclide undergoes nuclear fission to give barium-143, krypton-88, and three neutrons?
Problem 64
What nuclide undergoes nuclear fission to give xenon- \(142,\) strontium- \(90,\) and two neutrons?
Problem 68
The nuclear fusion of a lithium- 7 nucleus and particle \(X\) releases two alpha particles and a neutron. Identify particle X.
Problem 69
The nuclear fusion of two identical nuclides produces an alpha particle and a gamma ray. Identify the fusion nuclide.
Problem 70
The nuclear fusion of two identical nuclides produces a deuterium nucleus and a positron. Identify the fusion nuclide.
