Example Sentences

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In the United States, uranium ores contain from 0.05–0.3% of the uranium oxide U3O8; the uranium in the ore is about 99.3% nonfissionable U-238 with only 0.7% fissionable U-235.

From Textbooks • Feb. 14, 2019

A reactor will be surrounded by a blanket of thorium or the plentiful but nonfissionable uranium isotope, U-238.

From Time Magazine Archive

The U-bomb, say the educated guessers, gets much of its energy from uranium 238, the plentiful isotope of uranium that used to be considered inert and nonfissionable.

From Time Magazine Archive

Nuclear power plants, which are commercially available, cannot help making plutonium out of nonfissionable uranium while they are producing electricity.

From Time Magazine Archive

Nearly all the rest ot it is nonfissionable U-238.

From Time Magazine Archive