How Nuclear Radiation Works How Atoms Work How do you write the chemical reaction that takes place in a smoke detector? More Great Links Charlotte Fire Department: Smoke Detectors USFA: Home Fire Safety Smoke Detectors Save Lives Smoke Detectors and Americium Share: Citation More...
Detectors like this are called ionization smoke detectors. What does that mean? Inside the detector, there's an ionization chamber open to the air (1) filled with ions (2), which, in this case, are atoms that have lost electrons to make positively charged nuclei. Where do the ions come...
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HOW STUFF WORKS: ; Radioactive americium controls smoke detectorsMarshall Brain