Uranium with the U-235 isotope present at a concentration of 0.711 percent (by weight), that is, uranium with its isotopic content exactly as it is found in nature.
In mathematics, if x 2 = y, then x is a square root of y. Square roots are expressed by a 'radical sign'.
The square root of any number x 2 is x. The square root of 2 is not a ...
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