My opinion is that all details about uranium are not secret. Anyone can go to the library or go online to find out everything you want. Of course, some manufacturing secrets of companies remain secret but this is normal for any product in the world.
Accurate details are not available about uranium due to its toxic and radioactive nature. It is often used in atomic bombs and nuclear power reactors. Due to its volatile nature, details are rarely found to protect the safety of the public.
Uranium is present in approx. 220 rocks and minerals.
Yes, uranium ores are available in many countries.
Uranium is found in the earth only in the form of compounds. Uranium is present in cca. 200 minerals.
1 nanogram of natural uranium = 2,53.1012 atoms
Absolutely none. Radium is element #88, while uranium is element #92. They are two completely different entities. If you are referring to uranium ores, it is a different story. The ratio is about 3 metric tons of uranium to 1 gram of radium. Oxygen and other elements are also present in uranium ore. http://en.wikipedia.org/wiki/Uranium#Oxides
Which compound
Lead is always present in uranium-bearing rocks because lead is a decay product of uranium. As uranium undergoes radioactive decay, it transforms into different elements, including lead. This is a natural process that occurs over time in the rocks containing uranium.
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If you mean subatomic particles, all of the standard ones are present.
92 electrons
Uranium is not typically found in significant quantities in the Caribbean. The region does not have major uranium deposits, and if present, they would likely be limited and not commercially viable for mining.