Verbal agreements are only as good as the paper they are written on. If your friend hasn't paid you for almost a year I wouldn't hold my breath waiting. Just be glad it only cost yo $500 to find out how good a friend they were. It could have cost you thousands of dollars.
Nuclear Materials. Nuclear materials are the key ingredients in nuclear weapons. They include fissile, fussionable and source materials. Fissile materials are those which are composed of atoms that can be split by neutrons in a self-sustaining chain-reaction to release energy, and include plutonium-239 and uranium-235.
Thorium (atomic number 90) occurs naturally, with soil often containing above ten parts per million, and it is about three times more abundant than uranium. It is found in several minerals, most commonly the rare earth-thorium-phosphate mineral monazite.horium Power says thorium-based nuclear fuels can be used in LWRs and other reactors without significant change to the reactor design. Pure thorium is a silvery-white metal that, when exposed to air, forms thorium oxide.. Thorium Power uses a seed-and-blanket fuel assembly.