Common
Transuranium element
Element whose atomic number is greater than 92
Transuranium element
The transuranium (or transuranic) elements are the chemical elements with atomic number greater than 92, which is the atomic number of uranium. All of them are radioactively unstable and decay into other elements. They are synthetic and none occur naturally on Earth, except for neptunium and plutonium which have been found in trace amounts in naturally occurring uranium ore.
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