Respuesta :
The answer gonna be: 1/2^n = 1/2^4 = 0.0625
So, 6.25% sample has not decayed yet!!!
The amount of the radioactive sample which has not decayed given the data is 6.25%
Assumption
Let the original amount be 100%
How to determine the amount remaining
- Original amount (N₀) = 100%
- Number of half-lives (n) = 4
- Amount remaining (N) =?
N = N₀ / 2ⁿ
N = 100 / 2⁴
N = 100 / 16
N = 6.25%
Thus, 6.25% of the radioactive sample has not decayed
Learn more about half life:
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