Change the chapter
Write the complete decay equation for the given nuclide in the complete $^A_Z\textrm{X}_N$ notation. Refer to the periodic table for values of Z:
$\beta^+$ decay of $^{50}\textrm{Mn}$
Question by OpenStax is licensed under CC BY 4.0.
Please see the solution video.
Solution Video

OpenStax College Physics Solution, Chapter 31, Problem 19 (Problems & Exercises) (1:21)

Sign up to view this solution video!


No votes have been submitted yet.

Quiz Mode

Why is this button here? Quiz Mode is a chance to try solving the problem first on your own before viewing the solution. One of the following will probably happen:

  1. You get the answer. Congratulations! It feels good! There might still be more to learn, and you might enjoy comparing your problem solving approach to the best practices demonstrated in the solution video.
  2. You don't get the answer. This is OK! In fact it's awesome, despite the difficult feelings you might have about it. When you don't get the answer, your mind is ready for learning. Think about how much you really want the solution! Your mind will gobble it up when it sees it. Attempting the problem is like trying to assemble the pieces of a puzzle. If you don't get the answer, the gaps in the puzzle are questions that are ready and searching to be filled. This is an active process, where your mind is turned on - learning will happen!
If you wish to show the answer immediately without having to click "Reveal Answer", you may . Quiz Mode is disabled by default, but you can check the Enable Quiz Mode checkbox when editing your profile to re-enable it any time you want. College Physics Answers cares a lot about academic integrity. Quiz Mode is encouragement to use the solutions in a way that is most beneficial for your learning.

Video Transcript
This is College Physics Answers with Shaun Dychko. In the positron decay of manganese, we can imagine that a proton turns into a neutron so the proton number has decreased from 25 into 24 and that proton that has disappeared has turned into a neutron. So the number of neutrons has increased from 25 to 26. And the number of nucleons is the same though; it's 50 in both cases, the total of protons plus neutrons remains 50. This is now chromium and in order to conserve charge because a positive charge was lost here, there needs to be the creation of a compensating positive charge which is this positron. This positron is the anti-particle to an electron and for that reason, it has an electron family number of negative 1 and in order to compensate for that, we need to have a particle that has an electron family number of positive 1 which this electron neutrino has. So the electron family number is conserved; the charge is conserved because where you had 25 to begin with and now we have 24 plus 1 which is 25 so charge is conserved and there we go. That's positron decay of manganese.