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23 Nov 2019
A scientist performing UN inspections finds evidence of anabandoned nuclear laboratory. A sample box in the lab reads "puresample Strontium-90." However, the contents of the box are found tobe only 61.0% Sr-90. The radioactive element Sr-90 is known to havea half-life of 28.6 years. How long ago was the samplecreated?
Answer in years
A scientist performing UN inspections finds evidence of anabandoned nuclear laboratory. A sample box in the lab reads "puresample Strontium-90." However, the contents of the box are found tobe only 61.0% Sr-90. The radioactive element Sr-90 is known to havea half-life of 28.6 years. How long ago was the samplecreated?
Answer in years
Jarrod RobelLv2
22 Apr 2019
