Multiple Choice
A radioactive isotope of a metal produced a reading of 188 Bq. Another reading of the activity was taken 4 hours later and the reading was 47.0 Bq. What is the half-life of this isotope?
A) 4 hr
B) 2 hr
C) 1 hr
D) 30 min
Correct Answer:
Verified
Correct Answer:
Verified
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