Logarithms: Radioactive Decay
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Formula: Radioactive Decay Formula
  
Given: There are 19 grams of Uranium-232.
Uranium-232 has a half-life of 68.9 years.
  
Find:  Use the formula above to calculate the time it would take for the given mass to degrade down to 0.42 grams. Calculate the solution for 't' to the nearest tenth using logarithms.
  
Solution:   t = years