Question

what is pre uranium element ?

Answer 1

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Uranium is a chemical element with symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. ... The most common isotopes in natural uraniumare uranium-238 (which has 146 neutrons and accounts for over 99%) and uranium-235 (which has 143 neutrons).

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Answer 2

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Uranium Is A Chemical Element With Symbol U And Atomic Number 92 It Is A Silvery-Grey Metal In The Actinide Series In The periodic table. ... The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99%) and uranium-235 (which has 143 neutrons).