Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

11. Nuclear Chemistry

Gamma Emission

GOB Chemistry

11. Nuclear Chemistry

Gamma Emission

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1:20 minutes

Problem 62e

Textbook Question

Write the balanced nuclear equation for each of the following:
e. In-113m (γ emission)

Verified step by step guidance

Identify the type of nuclear reaction: This problem involves gamma (γ) emission, which is a type of radioactive decay where a nucleus releases energy in the form of gamma radiation without changing the number of protons or neutrons.

Write the initial isotope: The given isotope is indium-113m (In-113m). The 'm' indicates that the nucleus is in a metastable (excited) state.

Understand the effect of gamma emission: During gamma emission, the nucleus transitions from an excited state (metastable) to a lower energy state or ground state. The atomic number and mass number remain unchanged.

Write the balanced nuclear equation: Represent the gamma emission process as follows:

{In}^{113} (m) \to {In}^{113} + γ

. Here, the gamma ray (γ) is emitted, and the isotope transitions to its ground state.

Verify the equation: Ensure that the mass number (113) and atomic number (49 for indium) are conserved on both sides of the equation. This confirms the equation is balanced.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Nuclear Equations

Nuclear equations represent the transformation of atomic nuclei during radioactive decay or nuclear reactions. They show the initial and final states of the nucleus, including the types of particles emitted, such as alpha particles, beta particles, or gamma rays. Balancing these equations is crucial to ensure that the number of protons and neutrons remains constant before and after the reaction.

Gamma Emission

Gamma emission is a type of radioactive decay where an unstable nucleus releases energy in the form of gamma rays, which are high-energy electromagnetic radiation. This process typically occurs after other types of decay, such as alpha or beta decay, to help the nucleus reach a more stable state. Unlike alpha and beta decay, gamma emission does not change the number of protons or neutrons in the nucleus.

Isotopes and Isomeric States

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons, resulting in different atomic masses. Isomeric states, such as In-113m, refer to nuclei that exist in an excited state and can release energy through gamma emission to transition to a lower energy state. Understanding isotopes and their behavior is essential for writing accurate nuclear equations.

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Write the balanced nuclear equation for each of the following: e. In-113m (γ emission)

Key Concepts

Nuclear Equations

Gamma Emission

Isotopes and Isomeric States

Watch next

Write the balanced nuclear equation for each of the following:
e. In-113m (γ emission)