RATH3SUNG0D2017
RATH3SUNG0D2017 t1_iyiuogj wrote
Reply to comment by cjheaford in Do we have any compounds or materials on Earth that compared to the rest of the universe is incredibly rare? by SwordArtOnlineIsGood
Plutonium is a decay product of U-238, so natural deposits of uranium do have some amount of it, i.e. it's not man-made, but we bring enough uranium together to probably have an above-average amount compared to other unadulterated planets/space rocks.
RATH3SUNG0D2017 t1_iyjcj4f wrote
Reply to comment by cjheaford in Do we have any compounds or materials on Earth that compared to the rest of the universe is incredibly rare? by SwordArtOnlineIsGood
Beta decay! A neutron emits an electron and antineutrino and becomes a proton.
Edit: If you'll entertain wikipedia as a source, https://en.m.wikipedia.org/wiki/Beta_decay