Which substance is an artificial radioactive metal used in certain nuclear weapons programs and requires stringent containment during transit?

Which substance is an artificial radioactive metal used in certain nuclear weapons programs and requires stringent containment during transit?

• A. Smoke Detectors
• B. High Level Radiation
• C. Plutonium
• D. Natural Uranium

Answer: (C)

Plutonium fits this description because it is a man-made radioactive metal produced in nuclear reactors, with Pu-239 being a fissile isotope that has been used in some nuclear weapons programs. Its radiological hazard is extremely serious, and there’s also a criticality risk if it’s mishandled or dispersed, so shipments must be tightly contained, shielded, and secured. The other options don’t align with all parts of the clue: natural uranium is not artificial, and smoke detectors rely on americium-241 (which is artificial but not used in weapons programs) while “high level radiation” is not a substance at all.

Plutonium fits this description because it is a man-made radioactive metal produced in nuclear reactors, with Pu-239 being a fissile isotope that has been used in some nuclear weapons programs. Its radiological hazard is extremely serious, and there’s also a criticality risk if it’s mishandled or dispersed, so shipments must be tightly contained, shielded, and secured. The other options don’t align with all parts of the clue: natural uranium is not artificial, and smoke detectors rely on americium-241 (which is artificial but not used in weapons programs) while “high level radiation” is not a substance at all.