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You are an archaeologist researching artifacts left behind by Francisco Pizzaro's conquest of Peru in the 1530s.In order to confirm the authenticity of the leather artifacts, you are performing radiometric dating using an isotope pair that has a half-life of 250 years.In order for the artifacts to date back to the time of Pizzaro's conquest, approximately how much original radioactive isotope must be left in the artifacts?
Norms
Guidelines or rules of behavior that are considered acceptable in a group or society.
Personal Space
The physical area surrounding an individual that they regard as psychologically theirs, invasion of which can lead to discomfort or anxiety.
Social Status
The position or rank of a person or group within the society based on various factors such as wealth, occupation, education, and family lineage.
Age
A measurement of the time an individual has lived, typically expressed in years.
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