If Radioactive Materials Are So Dangerous, Why Are Alpha Emitters

question 55

Multiple Choice

If radioactive materials are so dangerous, why are alpha emitters like Americium-241 readily found in the home in such things as smoke detectors?

• A) radioactive materials only emit radiation when exposed to bright sunlight
• B) small amounts of a radioactive material are safe to be handled
• C) man made alpha emitters are much more easily handled than natural isotopes
• D) gaseous alpha emitters are the only dangerous ones
• E) alpha particles do not penetrate well and are absorbed by air or smoke.

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