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Home Q & A Board Science-Related Homework Help Psychology Neuroscience and Mental Health
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agilleland agilleland
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6 years ago
How many radioactive atoms are present in a sample that has an activity of 0.5 mCi and a half-life of 10 years? (1 curie = 3.7  1010 decays/s)
 a. 9.5  1012 atoms
  b. 8.4  1012 atoms
  c. 7.3  1012 atoms
  d. 6.5  1012 atoms
  e. 2.7  105 atoms
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juliaguayjuliaguay
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6 years ago
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agilleland Author
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6 years ago
You make an excellent tutor!
annakc
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Yesterday
Just got PERFECT on my quiz
homework1
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2 hours ago
Thanks
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