DiPhosphorus pentoxide or pentaoxide
Only 0.7% of natural uranium is 'fissile', or capable of undergoing fission, the process by which energy is produced in a nuclear reactor. The form, or isotope, of uranium which is fissile is the uranium-235 (U-235) isotope. ... Most is then converted into uranium hexafluoride, ready for the enrichment plant.
The changes the masses of chalk on the scale because when it was dropped in Golden Hammer
Im going for d i think i took this last year