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madreJ [45]
2 years ago
10

The half-life of carbon-14 is about 5700 years. If you left those 100 carbon-14 atoms to sit around for 5700 years, how many wou

ld you expect to decay during that time?
Advanced Placement (AP)
1 answer:
Sergeu [11.5K]2 years ago
5 0

Answer:

50 atoms have decayed during that time

Explanation:

The radioactive decay is represented as

N = N_0 * \frac{1}{2}^X\\

Where N is the amount of radioactive element after a certain time period

N0 is the amount of radioactive element during the initial time period

X is the half life of the radioactive element

Substituting the given  values in above equation,  we get:

N = 100 * \frac{1}{2}^1\\N = 50atoms

So, 50 atoms of carbon-14 remain are left after decaying for 5700 years.

Hence,  atoms of carbon-14 that decay during 5700 years are 100-50 - 50

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