Approx. 115 US $/kg of the oxide U3O8 (but not for the nuclear grade quality, which is more expensive) - as to August 2011.
This cost depends on: type of reactor, type of the fuel, electrical power of the reactor, enrichment of uranium, the year of reactor project, global and local economic situation, etc.
The energy source for a nuclear power plant is the fissioning of nuclear fuel, which is normally uranium.
In a nuclear power plant (nuclear reactor) the radioactivity of uranium is not a problem in normal work conditions.
After mining and crushing the (uranium) ore, i think the uranium is dissolved with acid and spun in centrifuges to separate the heavy (more fissible) uranium-235 atoms from the lighter (less fissible) uranium-233 atoms. Highly radioactive material makes for faster chain reactions and more power, and is very dangerous.
Natural uranium has about 0.7 percent U235, this has to be increased to about 4 percent for use in natural water moderated reactors. The obtaining of uranium from mining and refining is described in the document linked below
Uranium is used as nuclear fuel in nuclear power plants because the fission of uranium atom release a formidable quantity of energy.
A nuclear power plant does use uranium as fuel It "burns" it in the nuclear sense not the chemical sense
a nuclear power plant produces electricity from uranium 235
Uranium
The majority of commercial nuclear power reactors use uranium (natural or enriched) as nuclear fuel.
Uranium (or plutonium) is a source of energy (nuclear fuel) in nuclear power plants.
Yes
Uranium is the fuel that is used.
Natural uranium
In a nuclear fission reactor power plant
in the nucleus
Uranium is more expensive, but the kWh in a nuclear power plant is more cheaper.
The energy source for a nuclear power plant is the fissioning of nuclear fuel, which is normally uranium.