Q124
General ScienceEnvironment & Ecology
Which radioactive metal is responsible for Chernobyl accident?
- a.Radioactive Uranium
- b.Radioactive Coesium
- c.Radioactive Plutonium
- d.Radioactive Polonium
Answer: (B) Radioactive Coesium
Caesium-137, with a half-life of about 30 years, was the main radioactive metal released and spread over Europe by the 1986 Chernobyl accident, and it is responsible for the long-term contamination of the exclusion zone. Uranium was the reactor fuel, but it is caesium that is linked with the accident's lasting damage; plutonium and polonium were not the main contaminants.