Fermium-253 Has a Half-Life of 3 $10 ^ { 7 }$

question 40

Multiple Choice

Fermium-253 has a half-life of 3.00 days. If a sample of fermium originally has 7.37 × $10 ^ { 7 }$ nuclei, how long will it take for there to be only 3.36 × $10 ^ { 6 }$ fermium-253 nuclei left in this sample?

• A)2.75 days
• B)9.80 days
• C)13.4 days
• D)15.7 days
• E)58.6 days

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