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bismuth

How has liquid bismuth been used in nuclear energy generation?

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A labeled periodic table element box for bismuth shows atomic number 83, symbol Bi, atomic weight 208.9804, electron configuration, and properties including solid state, rhombohedral crystal structure, and weakly acidic oxides. — bismuth Properties of bismuth.

In the field of nuclear energy, liquid bismuth has been utilized as both a fuel carrier and a coolant.1