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Home Q & A Board Science-Related Homework Help Physics
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Chery Chery
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7 years ago
A sample containing 4.0 × 1018 atoms of a radioactive isotope decays with a half-life of 2.3 years. How many undecayed atoms are left after 3.7 years?
A) 2.5 × 1018
B) 1.7 × 1018
C) 1.3 × 1018
D) 1.1 × 1018
Textbook 
College Physics

College Physics


Edition: 1st
Authors:
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lyalllyall
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Chery Author
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#2
7 years ago
I needed this so much, thanks
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