I have to imagine that those particles were too heavy to fly around the room and into my lungs. Your results may vary. So, my father visited a uranium mine, and I didn't even get a lousy T-shirt. What I do have is a story. So, that's what would happen if you touched uranium ... probably. read more
The same goes for U235, the fissionable form that is more prevalent in uranium enriched for use in reactors of weapons. It has a half life of 700 million years and, again, is essentially harmless. Going near uranium can’t hurt you. read more
Uranium is a radioactive element,but it exists in various isotopic forms.Not all of them are equally lethal,this depends on the amount of radiation emitted per unit time., Natural Uranium which is 98% U-238 has a long half life of 4.5 billion years, so the radioactivity is actually quite low. read more
In contrast, an RBMK reactor like the one that blew up in Chernobyl contains 100–150 fuel assemblies, each with over 100 kg of partially enriched uranium. So right there, the amount of fuel in the reactor is several hundred times more than the amount of fission fuel in a nuclear bomb. read more