Do neutrons ever split into protons and electrons?

I recently read that neutron stars form when great pressure causes protons and electrons to coalesce and become neutrons. Does the opposite ever occur?

billrussell422017-10-17T17:24:28Z

Favorite Answer

yes.

Outside the nucleus, free neutrons are unstable and have a mean lifetime of about 14 minutes, 42 seconds, into proton, electron and electron antineutrino

lunchtime_browser2017-10-17T17:21:26Z

Look up beta particles or beta radiation.

http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/atoms_radiation/nuclearradiationrev9.shtml