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Yes, it is mined mainly in Canada and Australia, but also in other countries. The fissile U235 isotope is only 0.7 percent of natural uranium and is increased by enrichment before use, for most reactors.

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16y ago

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Where is uranium-235 made?

It is a naturally occurring isotope of Uranium making 0.72% of total naturally found Uranium. Since, it is very less in nature, therefore it is sometimes made from Uranium-238 in nuclear reactors.


How much uranium 238 is in nature?

It is impossible to know exactly this value; probably approx. 5.109 tons. But only a very small part of this quantity is economically to extract today.


Why is radon still found in nature?

Radon is a naturally occurring radioactive gas that is produced from the decay of uranium in soil and rocks. It is found in the Earth's crust and can seep into buildings through cracks and openings in the foundation. This is why radon is still present in nature.


The heaviest element found in nature is?

I believe it is Uranium. All elements heavier than uranium are man-made. Here's an interesting article... http://space.newscientist.com/article/dn13828-has-the-heaviest-element-been-found.html


Is Uranium a man made element?

No, Uranium is naturally occurring. But all elements beyond uranium are man-made.


Which element is the heaviest actininde that occurs naturally on earth?

Uranium is the heaviest naturally occurring actinide.


Is Uranium produced in a lab?

No. Uranium can be found naturally.


Why are accurate details about uranium not available?

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.


Which elements found in nature have mainly radioactive isotopes?

Some elements found in nature that mainly have radioactive isotopes include uranium, thorium, and potassium. These elements have naturally occurring radioactive isotopes that decay over time, releasing energy in the form of radiation.


Does uranium exist naturally in the earth?

Yes, uranium is a natural chemical element.


How does the uranium used in a CANDU reactor exist in nature?

The uranium used in a CANDU reactor primarily exists as uranium-238, a naturally occurring isotope found in various minerals, with a small percentage of uranium-235. It is extracted from uranium ore through milling and chemical processes to increase the concentration of uranium-235 for use as nuclear fuel in reactors.


Is uranium ore available?

Yes, uranium ores are available in many countries.