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Predict a likely mode of decay for each unstable nuclide. c. Fr-202
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Ch.21 - Radioactivity & Nuclear Chemistry
Tro5th EditionChemistry: A Molecular ApproachISBN: 9780134874371
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TOC.tableOfContents
- Ch.1 - Matter, Measurement & Problem Solving117
- Ch.2 - Atoms & Elements106
- Ch.3 - Molecules and Compounds128
- Ch.4 - Chemical Reactions and Chemical Quantities56
- Ch.5 - Introduction to Solutions and Aqueous Solutions84
- Ch.6 - Gases112
- Ch.7 - Thermochemistry96
- Ch.8 - The Quantum-Mechanical Model of the Atom60
- Ch.9 - Periodic Properties of the Elements86
- Ch.10 - Chemical Bonding I: The Lewis Model91
- Ch.11 - Chemical Bonding II: Molecular Shapes, VSEPR & MO Theory85
- Ch.12 - Liquids, Solids & Intermolecular Forces51
- Ch.13 - Solids & Modern Materials48
- Ch.14 - Solutions93
- Ch.15 - Chemical Kinetics114
- Ch.16 - Chemical Equilibrium68
- Ch.17 - Acids and Bases137
- Ch.18 - Aqueous Ionic Equilibrium154
- Ch.19 - Free Energy & Thermodynamics91
- Ch.20 - Electrochemistry105
- Ch.21 - Radioactivity & Nuclear Chemistry74
- Ch.22 - Organic Chemistry141
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Capitolo 21, Problema 42a
Predict a likely mode of decay for each unstable nuclide. a. Sb-132 b. Te-139 d. Ba-123
Guida verificata passo dopo passo1
Identify the atomic number of the element. Antimony (Sb) has an atomic number of 51.
Determine the neutron number by subtracting the atomic number from the mass number: Neutron number = 132 - 51.
Compare the neutron-to-proton (n/p) ratio to the stable n/p ratio for elements around antimony. A high n/p ratio suggests beta decay, while a low n/p ratio suggests positron emission or electron capture.
Consider the position of the nuclide on the chart of nuclides. Nuclides above the band of stability typically undergo beta decay to decrease the neutron number.
Conclude the likely mode of decay based on the n/p ratio and the nuclide's position relative to the band of stability.
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Nuclear Decay
Nuclear decay refers to the process by which an unstable atomic nucleus loses energy by emitting radiation. This can occur through various modes, including alpha decay, beta decay, and gamma decay, each characterized by the type of particle or energy released. Understanding the stability of nuclides and the forces at play within the nucleus is essential for predicting the mode of decay.
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Percorso guidato
03:53
Alpha Decay
Beta Decay
Beta decay is a specific type of radioactive decay in which a neutron in the nucleus is transformed into a proton, emitting a beta particle (an electron or positron) and an antineutrino or neutrino. This process increases the atomic number of the element by one while keeping the mass number unchanged. It is common in nuclides that are neutron-rich, making it a likely decay mode for certain isotopes.
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03:01Beta Decay
Isotopes and Stability
Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons, leading to different mass numbers. The stability of an isotope depends on the ratio of neutrons to protons; an imbalance can lead to instability and radioactive decay. Understanding the specific isotope in question, such as Sb-132, is crucial for predicting its decay mode based on its nuclear structure.
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04:36Isotopes
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