NUCLEAR FISSION AND NUCLEAR
FUSION EXAM 2025 QUESTIONS AND
ANSWERS
Use the periodic table and what you know about mass numbers to complete each statement.U-
238 has _____ protons and146 neutrons.
A particular isotope of plutonium has 94 protons, ______ neutrons, and a mass number of 241.
Thorium-______ has 90 protons and 137 neutrons. - ANS 92
147
227
Determine which decay process is being described in each case.The atomic number deceases by
one, and the atomic mass is unchanged.
The atomic number decreases by two, and the atomic mass decreases by four.
The atomic number increases by one, and the atomic mass remains unchanged. - ANS beta
plus decay
alpha decay
beta minus decay
Use the periodic table and your knowledge of isotopes to complete these statements.When
polonium-210 emits an alpha particle, the child isotope has an atomic mass of .
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, I-131 undergoes beta-minus decay. The chemical symbol for the new element is .
Fluorine-18 undergoes beta-plus decay. The child isotope has an atomic mass of . - ANS 206
Xe
18
chain reaction - ANS a self-sustaining series of chemical reactions in which the products of
one reaction are the reactants in the next reaction
critical mass - ANS the amount of fissionable material capable of sustaining a constant rate of
fission
nuclear fission - ANS the process in which a heavy nucleus is split into two large fragments of
comparable mass to form smaller and more stable nuclei, resulting in the release of great
amounts of energy
nuclear fusion - ANS the process in which lighter atomic nuclei combine to form a heavier,
more stable nucleus, resulting in the release of great amounts of energy
transuranium element - ANS an element that has an atomic number greater than 92, is
produced in a laboratory, and is radioactive
Use the periodic table to complete this equation that represents nuclear fission processes.
23592U + 10n → 13956Ba + ABC + 3 10n
A:
B:
2 COPYRIGHT © 2025 SIRJOEL ALL RIGHTS RESERVED
FUSION EXAM 2025 QUESTIONS AND
ANSWERS
Use the periodic table and what you know about mass numbers to complete each statement.U-
238 has _____ protons and146 neutrons.
A particular isotope of plutonium has 94 protons, ______ neutrons, and a mass number of 241.
Thorium-______ has 90 protons and 137 neutrons. - ANS 92
147
227
Determine which decay process is being described in each case.The atomic number deceases by
one, and the atomic mass is unchanged.
The atomic number decreases by two, and the atomic mass decreases by four.
The atomic number increases by one, and the atomic mass remains unchanged. - ANS beta
plus decay
alpha decay
beta minus decay
Use the periodic table and your knowledge of isotopes to complete these statements.When
polonium-210 emits an alpha particle, the child isotope has an atomic mass of .
1 COPYRIGHT © 2025 SIRJOEL ALL RIGHTS RESERVED
, I-131 undergoes beta-minus decay. The chemical symbol for the new element is .
Fluorine-18 undergoes beta-plus decay. The child isotope has an atomic mass of . - ANS 206
Xe
18
chain reaction - ANS a self-sustaining series of chemical reactions in which the products of
one reaction are the reactants in the next reaction
critical mass - ANS the amount of fissionable material capable of sustaining a constant rate of
fission
nuclear fission - ANS the process in which a heavy nucleus is split into two large fragments of
comparable mass to form smaller and more stable nuclei, resulting in the release of great
amounts of energy
nuclear fusion - ANS the process in which lighter atomic nuclei combine to form a heavier,
more stable nucleus, resulting in the release of great amounts of energy
transuranium element - ANS an element that has an atomic number greater than 92, is
produced in a laboratory, and is radioactive
Use the periodic table to complete this equation that represents nuclear fission processes.
23592U + 10n → 13956Ba + ABC + 3 10n
A:
B:
2 COPYRIGHT © 2025 SIRJOEL ALL RIGHTS RESERVED
