It’s a terrible weapon. Radon is dangerous because when it decays, it decays in to tiny particles of radioactive dust that get embedded in your lungs. Decades

It’s a terrible weapon. Radon is dangerous because when it decays, it decays in to tiny particles of radioactive dust that get embedded in your lungs. Decades of exposure get you lung cancer. Radon has a half life of less than 4 days, you would need a shitload of uranium in order to accumulate enough radon as a decay product in order to be acutely deadly to anyone. Like it would probably be easier to build a nuclear weapon than to murder somebody with radon. Likewise intentionally trying to get someone addicted to cigarettes would be a more effective “murder” weapon.