delilah0027
Answered

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The half-life of iodine-131 is 8 days. If a sample originally contains 0.96 g of the isotope, how much will remain after 8 days?
A. 0.48 g
B. 0.249
C. 0.12 g
D. 0.06 g
please help : (

Sagot :

allenjmathew2121

Answer: 0.48g (A)

Explanation:

After each half life you have half the amount you had in the previous half life.

Since one half life takes 8 days, in 8 days one half life will take place

This means that the amount after 8 days will be half of what was there before

0.96/2 = 0.48g

Answer:

A

Explanation:

0.48 g

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