[{"from": "human", "value": "Please give me some details about this molecule. [F][U][Branch1][C][F][Branch1][C][F][Branch1][C][F][Branch1][C][F][F]"}, {"from": "gpt", "value": "The molecule is a fluoride of uranium. It is used for fuel in nuclear reactors and nuclear weapons. Uranium is a chemical element that has the symbol U and atomic number 92. It is a normal part of rocks, soil, air, and water, and occurs in nature in the form of minerals. (L248, L249, L252)"}]