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The element dubnium is not mined. This metal is what is called a transactinide element, and it is not found anywhere in nature. All of the dubnium on earth has been synthesized in high energy physics laboratories. Additionally, all of it is unstable, and it is, therefore, radioactive. Use the link below to learn more about this element.

Q: Where is dubnium mined?
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The element dubnium is not mined. This metal is what is called a transactinide element, and it is not found anywhere in nature. All of the dubnium on earth has been synthesized in high energy physics laboratories. Additionally, all of it is unstable, and it is, therefore, radioactive. Use the link below to learn more about this element.

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Positives repel each other. In an atom, the nucleas is full repelling protons with their positive charge. It is the nuclear force that holds them together in the nucleus. A Helium atom has only 2 protons which makes it more stable.

Uranium on the other hand, has 92 protons all squashed together. This makes it very unstable which allows it to undergo gamma radiation.

That is why Uranium is radioactive.
Unstable atoms as uranium are radioactive; the stability depends on the ratio between protons and neutrons.

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No. It is quite difficult for elements to change into new elements.

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Non-elements. There are only around 118 known elements, there are millions of compounds made of those elements.

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Hydrogen and oxygen are already elements. Elements do not contain other elements.

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