The Half-Life of Cobalt-60 Is 5

question 96

Multiple Choice

The half-life of cobalt-60 is 5.20 yr.How many milligrams of a 2.000-mg sample remain after 6.55 years?

• A) 0.837
• B) 3.23 × 10^-15
• C) 4.779
• D) 1.588
• E) 1.163

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