Interpretation : The question is to find the isotope that remains after three beta particles and five alpha particles are lost from a thorium-234 isotope.
Concept Introduction: An unstable atomic nucleus loses energy by radiation during the process of radioactive decay. A substance is regarded as radioactive if it has unstable nuclei.
Answer to Problem 92A
Bismuth-214.
Explanation of Solution
Given information: Thorium-234 undergoes beta emission by emitting 3 beta particles and alpha emission by emitting 5 alpha particles.
From the given data, we get the below equation
According to the law of conservation of mass, mass is neither created nor destroyed during a
The
Let the mass number and the atomic number of the unknown particle be a and b respectively and the unknown particle be X.
Thus, by the law of conservation of mass,
The radioactive isotope with mass number 214 and atomic number 83 is Bismuth and is represented as Bi.
Hence, the chemical equation becomes,
The isotope that remains after three beta particles and five alpha particles are lost from a thorium-234 isotope is Bismuth-214.
Chapter 25 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY