4 ms·

I'm sure they exist, but there are no cases involving kilograms of Californium since there exist maybe ten grams of the stuff in the entire world.

• mehrdadn 7y ago
  Ten grams in the entire world? I see photos of what is claimed to be solid californium here... is that fake: http://www.chemistrylearner.com/californium.html http://www.chemistrylearner.com/californium.html
  • petschge 7y ago
    The image labeled "Californium bullet" actually shows laboratory neutron sources that contain 5 mg of Californium. The rest of the "bullet" is actually a stainless steel casing. The metal shaving further down the page are most likely microscopic, but as no length scale is given it is hard to estimate the mass.
    • ars 7y ago
      That website also claims Californium is used to make jewelry. Personally I have my doubts about that
• atemerev 7y ago
  Of course. Here I was talking about HEU/Pu.