U-238

American  

Or U 238

Chemistry.

1. uranium 238.

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Example Sentences

See Examples For:

U-238

The remainder, mostly U-238, is left as so-called waste.

From Washington Post ● Apr. 19, 2022

Refining it to a purity of 3.67%, the level now allowed by the nuclear deal, means removing 114 unwanted atoms of U-238 for every atom of U-235.

From Seattle Times ● May 16, 2019

U-238 decays into Pb-206 with a half-life of 4.5 109 y, so the decay constant λ is:

From Textbooks ● Feb. 14, 2019

It was not then known to occur naturally — though trace amounts would later be found in nature — and was formed by the capture of a neutron by U-238.

From Salon ● Sep. 30, 2018

If tritium was the sought-after product, for example, you used lithium-6; if it was plutonium, the raw material would be uranium—namely, that waste U-238.

From "Big Science" by Michael Hiltzik