 
 <prompt> ```Which isotope of uranium dey less common, uranium-238 or uranium-237? Given the previous question, write a context wey contain the answer. E fit be 1 - 20 sentences. Context:``` <response>: Natural uranium get three main isotopes: uranium-238 (99.28% natural abundance), uranium-235 (0.71%), and uranium-234 (0.0054%). All three dey radioactive, dem dey emit alpha particles, except say all three of dem get small chance to do spontaneous fission, instead of alpha emission. E get five other small small isotopes: uranium-239, wey dey form when 238U do spontaneous fission, release neutrons wey another 238U atom go capture; uranium-237, wey dey form when 238U capture neutron but come release two more, wey go come decay to neptunium-237; uranium-233, wey dey form for the decay chain of that neptunium-237; and lastly, uranium-236 and -240, wey dey show for the decay chain of original plutonium-244. Dem dey expect say thorium-232 fit do double beta decay, wey go produce uranium-232, but dem never see am for experiment yet. 