Eli5: how can a proton turn into a neutron in Beta Decay?

1.31K views

We recently touched on the subject of radioactivity in class, and we learned about all the types of radiation an atom can emit(gama/beta-+/delta), and what their products are.

What I don’t understand is in beta- a neutron turns into 1 proton and 1 electron, but in beta+ a proton turns into a neutron, how is that possible [(n=>p+e) ==(p=>n)(e?????)]? Aren’t mater and energy subject to the laws of conservation or am I missing something? Where is the electron? Thank you in advance

In: Physics

4 Answers

Anonymous 0 Comments

It doesn’t make sense because you’re missing a few end products! Your intuition was spot on. Beta positive produces a positron and electron neutrino. A positron is an anti-electron–the positive charged counterpart to an electron. edit: (beta negative produces an electron anti-neutrino as well fwiw). I’ll let someone with a stronger background in this part of physics do an explanation of the weak nuclear force and what’s going on at a deeper level here.

edits: for clarity and improving the tone–which was more terse than I wanted the first time!

You are viewing 1 out of 4 answers, click here to view all answers.