PH-684
Uses and hazards of radioactivity
Physics · Secondary 3 · Medium · Uses and hazards of radioactivity
A hospital stores radioactive iodine used as a tracer in thick lead containers and asks staff to stand as far away as possible when not handling it. What is the main reason for these precautions?
- To reduce the risk of ionising radiation damaging body cells
- To stop the iodine from losing its radioactivity too quickly
- To prevent the iodine from reacting chemically with air
- To keep the iodine at a constant low temperature
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