
Concept explainers
(a)
Interpretation:
Symbol, atomic number and mass for the unknown particle of the given nuclear reaction have to be identified.
Concept Introduction:
Balancing
- The sum of the mass numbers of the reactants should be equal to the sum of mass numbers of the products in the reaction.
- The sum of
atomic numbers (or the atomic charge) of the reactants should be equal to the sum of atomic numbers (or the atomic charge) of the products in the reaction.
(a)

Explanation of Solution
The bombardment of unknown particle with Beryllium-9, produce an Helium nuclei particle andLithium-6. The unknown particle is predicted by the rule that says the
The elemental representation is,
The complete nuclear reaction is
(b)
Interpretation:
Symbol, atomic number and mass for the unknown particle of the given nuclear reaction have to be identified.
Concept Introduction:
Balancing nuclear reaction equation: The balanced nuclear reaction should conserve both mass number and atomic number.
- The sum of the mass numbers of the reactants should be equal to the sum of mass numbers of the products in the reaction.
- The sum of atomic numbers (or the atomic charge) of the reactants should be equal to the sum of atomic numbers (or the atomic charge) of the products in the reaction.
(b)

Explanation of Solution
The bombardment of neutron particle with unknown nuclei, produce a Sodium-24 and Helium nuclei particle. The unknown particle is predicted by the rule that says the atomic and mass number must be equal.
The elemental representation is,
The complete nuclear reaction is
(c)
Interpretation:
Symbol, atomic number and mass for the unknown particle of the given nuclear reaction have to be identified.
Concept Introduction:
Balancing nuclear reaction equation: The balanced nuclear reaction should conserve both mass number and atomic number.
- The sum of the mass numbers of the reactants should be equal to the sum of mass numbers of the products in the reaction.
- The sum of atomic numbers (or the atomic charge) of the reactants should be equal to the sum of atomic numbers (or the atomic charge) of the products in the reaction.
(c)

Explanation of Solution
The bombardment of unknown particle with Calcium-40, produce Proton nuclei particle and Potassium-40. The unknown particle is predicted by the rule that says the atomic and mass number must be equal.
The elemental representation is,
The complete nuclear reaction is
(d)
Interpretation:
Symbol, atomic number and mass for the unknown particle of the given nuclear reaction have to be identified.
Concept Introduction:
Balancing nuclear reaction equation: The balanced nuclear reaction should conserve both mass number and atomic number.
- The sum of the mass numbers of the reactants should be equal to the sum of mass numbers of the products in the reaction.
- The sum of atomic numbers (or the atomic charge) of the reactants should be equal to the sum of atomic numbers (or the atomic charge) of the products in the reaction.
(d)

Explanation of Solution
The bombardment of alpha particle with Amercium-241, produce an unknown nuclei particle and Berkelium-243. The unknown particle is predicted by the rule that says the atomic and mass number must be equal.
The elemental representation is,
The complete nuclear reaction is
(e)
Interpretation:
Symbol, atomic number and mass for the unknown particle of the given nuclear reaction have to be identified.
Concept Introduction:
Balancing nuclear reaction equation: The balanced nuclear reaction should conserve both mass number and atomic number.
- The sum of the mass numbers of the reactants should be equal to the sum of mass numbers of the products in the reaction.
- The sum of atomic numbers (or the atomic charge) of the reactants should be equal to the sum of atomic numbers (or the atomic charge) of the products in the reaction.
(e)

Explanation of Solution
The bombardment of Carbon-6 particle with Curium-246, produce four neutron particle and an unknown particle. The unknown particle is predicted by the rule that says the atomic and mass number must be equal.
The elemental representation is,
The complete nuclear reaction is
(f)
Interpretation:
Symbol, atomic number and mass for the unknown particle of the given nuclear reaction have to be identified.
Concept Introduction:
Balancing nuclear reaction equation: The balanced nuclear reaction should conserve both mass number and atomic number.
- The sum of the mass numbers of the reactants should be equal to the sum of mass numbers of the products in the reaction.
- The sum of atomic numbers (or the atomic charge) of the reactants should be equal to the sum of atomic numbers (or the atomic charge) of the products in the reaction.
(f)

Explanation of Solution
The bombardment of unknown particle with Uranium-238, produce five neutron particles and Fermium-249. The unknown particle is predicted by the rule that says the atomic and mass number must be equal.
The elemental representation is,
The complete nuclear reaction is
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Chapter 25 Solutions
Chemistry & Chemical Reactivity
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