Mining operations are generally fairly expensive, regardless of the material being mined. Most uranium is mined in Kazakhstan, Canada, Australia, Namibia, Russia and Niger. The cost of recovering the ore is something on the order of $60 US per ton of ore. But that's just a ball park figure.
The concentrations of uranium in ore can vary, as can labor and other fixed costs associated with removing material from the ground. This makes some mining operations more economical than others, as you'd expect. The variables are concentration of the metal in ore bodies, labor, transportation, and chemical and processing costs.
Canada is a close trading partner with the U.S., and the uranium oxides in ores there are concentrated more than most other places on earth. That generally makes it cheaper to mine uranium in Canada than in, say, Niger. The higher concentration of uranium oxides in Canadian ore offset and outstrip the lower labor costs in Niger. The question of concentration is probably the one that has the most effect on the actual cost per kilogram of yellowcake, which is uranium oxide at a concentration of something on the order of 75% or so. That's what the mines and point-of-extraction processing facilities deliver, generally speaking. Further refining and processing is required to win the pure metal, naturally, and all that comes at some additional cost.
The price is approx. 150 US$/kg.
one half-life
Uranium is a solid, not a liquid. So it is sold by weight, not by volume. As of 25 July 2011 Uranium costs US $ 51.50per US pound or US $113 per kilogram of natural uranium in the form of the unrefined uranium oxide (U3O8).
The cost of uranium varies wildly depending on who is selling it, and who is buying it. If you are looking for black market prices, they will obviously be high. But if you are looking for the low-radioactive uranium in uranyl compounds for pottery, the costs can be very low.
Today all the uranium mines in Colorado are closed.
The density of pure uranium metal is 19,1 g/cm3.
one half-life
Uranium is a solid, not a liquid. So it is sold by weight, not by volume. As of 25 July 2011 Uranium costs US $ 51.50per US pound or US $113 per kilogram of natural uranium in the form of the unrefined uranium oxide (U3O8).
Half life is the time taken for half the atoms to decay. Whatever mass you start with, if it is a sample consisting of one pure uranium isotope, you will have half that mass of uranium after one half life. The piece of metal will not weigh half of the original mass, because the decay products will be there. In practice, a piece of uranium usually consists of a mixture of isotopes with different half lives.
Because the uranium dust is inhaled and accumulated in the lungs; long term inhalation of uranium (or uranium compounds, also liquid aerosols) can lead to lungs cancer. Handling a piece of uranium with gloves is not dangerous (excepting of course the irradiated uranium; in this case we use hot cells).
Half life is the time taken for half the atoms to decay. Whatever mass you start with, if it is a sample consisting of one pure uranium isotope, you will have half that mass of uranium after one half life. The piece of metal will not weigh half of the original mass, because the decay products will be there. In practice, a piece of uranium usually consists of a mixture of isotopes with different half lives.
Uranium is a solid metal; the non-oxydated surface of a uranium piece is lustrous, very similar with the aspect of steels.
None. A pellet of uranium contains uranium, not coal.
160 (silver) Fish
A McDonalds 4 piece nugget box costs around 99p or $1.29.
Uranium is not used at home.
How much pewter costs will vary greatly. The price will be determined by the piece, the size, and the purity of the metal. Pewter is typically inexpensive.
Uranium-235 is found in nature at about 0.7% concentration to uranium-238.