Triple

Target class: synthetic isotope
Context triple: [californium-252, instanceOf, synthetic isotope]

• A. chemical isotope chosen
  A chemical isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons in its nucleus, resulting in a different atomic mass.
• B. isotope production facility
  An isotope production facility is a specialized installation that generates radioactive or stable isotopes—typically using reactors, cyclotrons, or accelerators—for use in medicine, industry, research, and energy applications.
• C. helium isotope
  A helium isotope is a variant of the helium atom that has the same number of protons (two) but a different number of neutrons, resulting in distinct atomic masses and nuclear properties.
• D. synthetic material
  A synthetic material is a man-made substance engineered through chemical processes to exhibit specific physical, chemical, or functional properties not typically found in natural materials.
• E. plutonium production reactor
  A plutonium production reactor is a nuclear reactor specifically designed and operated to irradiate uranium fuel and efficiently generate plutonium-239 for use in nuclear weapons or reactor fuel.
• F. None of above.