What is the Q Value of Beta Minus Decay?

  • Context: High School 
  • Thread starter Thread starter harsh22902
  • Start date Start date
  • Tags Tags
    Beta Decay Value
Click For Summary
SUMMARY

The Q value of beta minus decay is defined and calculated based on the mass of neutral atoms, which includes the mass of electrons. In beta minus decay, the daughter nucleus contains one additional proton compared to the mother nucleus, resulting in the daughter atom having one more electron. This mass difference is crucial for determining the energy released during the decay process.

PREREQUISITES
  • Understanding of nuclear physics concepts, specifically beta decay.
  • Familiarity with atomic mass and its components, including electrons.
  • Knowledge of energy conservation in nuclear reactions.
  • Basic grasp of particle interactions in nuclear processes.
NEXT STEPS
  • Research the calculation methods for Q values in various types of nuclear decay.
  • Explore the implications of beta decay on nuclear stability and isotopes.
  • Learn about the role of electrons in atomic mass calculations.
  • Investigate experimental methods for measuring Q values in beta decay.
USEFUL FOR

Students and professionals in nuclear physics, researchers studying radioactive decay, and educators teaching atomic structure and decay processes.

harsh22902
Messages
14
Reaction score
2
TL;DR
The given image shows the derivation of Q value in a beta minus decay. Now according to my understanding the electron released is formed from a neutron which converts to a proton and an electron within the nucleus , and has no relation with the orbital electrons. Then why is it that in the second bracket it has been given (Z+1)*m(e) and not Z*m(e) only.
beta.png
 
Physics news on Phys.org
It's because they define and calculate it in terms of the mass of the neutral atoms, which includes the mass of the electrons, and the daughter of a ##\beta##-decay nucleus has one more proton and thus also the corresponding atom one more electron than the mother nucleus/atom.
 
  • Informative
Likes   Reactions: harsh22902
That clears it for me , thank you !
 

Similar threads

  • · Replies 32 ·
2
Replies
32
Views
4K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
21
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K