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
Problem

List two key factors that determine nuclear stability.

physical state of the element

ratio of neutrons to protons

number of nucleons in the nucleus

pressure of the nucleus

temperature of the nucleus

Solution

At the center of an atom, there is a nucleus that is made up of neutrons and protons.


A neutron has no net charge. It acts like a ‘glue’ that keeps the nucleus together. This force that holds a nucleus together is called attractive strong forces.


A proton has a net positive charge. A proton exerts repulsive Coulombic forces towards other protons since like charges repel.


An atom is considered stable when it does not spontaneously emit radiation. In other words, the attractive strong forces overcome the repulsive forces and is able to hold the nucleus together.


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