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    Exam 19: Nuclear Chemistry
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    The Isotope of Iodine with Mass Number 128 Undergoes Beta
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The Isotope of Iodine with Mass Number 128 Undergoes Beta

Question 120

Question 120

Multiple Choice

The isotope of iodine with mass number 128 undergoes beta decay with a half-life of 25.00 minutes. How long will it take for 93.75% of a sample of pure 128 I to decay


A) 60.0 min
B) 80.0 min
C) 100. min
D) 120. min
E) None of the above

Correct Answer:

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