| uranium |
This metal is one of the heaviest of all known elements. It was named after the planet Uranus. Uranium gives off radioactivity. As it loses atomic particles, it decays and ends up, after millions of years, as lead. People working with uranium often need protective clothing to shield their bodies from radiation damage. Uranium is the fuel used to make nuclear energy in nuclear power plants. It is mined in many countries.
출처: www.progress-energy.com/aboutenergy/learningctr/el...
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| uranium |
In nature uranium occurs in varying quantities in the earth's surface. Uranium is absorbed by plants from the earth and also finds its way in very minute quantities into the drinking water. Particularly through the consumption of grains, an average of 0.5 mg of uranium is taken in per person per year . A commonly-known application of uranium is its use as fuel in nuclear power plants. To make the material safe for this, it must first be 'enriched'. ...
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