phenius
phenius phenius
  • 24-06-2016
  • Mathematics
contestada

suppose 2kg of a radioactive substance decays to 250g in 75years .what is the half-life of the substance ?

Respuesta :

zenaloren100 zenaloren100
  • 24-06-2016
7 5
x 4
30 0
   2
answer = 300 years
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