Ch.19 - Nuclear ChemistryWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Identify the unknown isotope X in the following decays.Part A. 234U→X+α.(1) 235U(2)230Th(3)228Th(4)239PuPart B. 32P→X+e−(1)32S(2)30P(3)35Cl(4)31PPart C. X→30Si+e+(1)32S(2)30P(3)35Cl(4)31PPart D. 24Mg→X+γ(1)24Na(2)23Na(3)24Mg(4)26Al


Identify the unknown isotope X in the following decays.

Part A. 234U→X+α.

(1) 235U




Part B. 32P→X+e−





Part C. X→30Si+e+





Part D. 24Mg→X+γ






Part A. 234U→X+α.

An alpha particle is comprised of 2 protons and 2 neutrons.

An alpha decay or alpha emission occurs when an unstable nucleus ejects an alpha particle to create a new element. 

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