Uranium-235 has to be enriched before it can be turned into fuel rods. This enrichment is achieved by freezing it and converting it to a solid .
What is uranium?
Uranium, with the atomic number 92 and the symbol U in the periodic table, is a weakly radioactive element. One of the heavy metals that may be used as a concentrated energy source is uranium.
Uranium-235 has to be enriched before it can be turned into fuel rods. This enrichment is achieved by freezing it and converting it to a solid .
Hence, freezing it and converting it to a solid is the correct answer for the blank.
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