Multiple Choice
Po decays by electron capture to give
Bi.If unshaded spheres represent
Po atoms and shaded spheres represent
Bi atoms,how many half-lives have passed in the following example?
A) 1 half-life
B) 2 half-lives
C) 3 half-lives
D) 4 half-lives
Correct Answer:

Verified
Correct Answer:
Verified
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