5000 particle? LOL! If that was true we would all have cancer:
“The average concentration of radon in the atmosphere is about 6×10−18 molar percent, or about 150 atoms in each ml of air.”
“The average concentration of radon in the atmosphere is about 6×10−18 molar percent, or about 150 atoms in each ml of air.”
I recommend revisiting high school chemistry, especially the topic of molar mass. (Hint: Plutonium is about 250 g/mol. One mol is 6x10^23 particles.)