Multiple Choice
Radioactive isotope A has a half-life of one year, while radioactive isotope B has a half-life of one day. If equal numbers of atoms of each are present, which will give the highest reading on a Geiger counter?
A) A
B) B
C) both the same
How much of the original sample of radioactive isotope A will be left at the end of the second year?
D) none
E) one-quarter
F) one-half
G) one-eighth
Correct Answer:

Verified
Correct Answer:
Verified
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