Which statements best describe the work of Marie and Pierre Curie? Check all that apply.They discovered radioactivity.They came up with the term “radioactivity.”They conducted experiments with uranium-containing minerals and pure uranium.They conducted experiments with uranium-containing minerals and photographic plates.They discovered two new radioactive elements.
Scientists use radioactive isotopes in agriculture to .
The half-life of carbon-14 is 5730 years. How long will it take for 7/8 of a sample of carbon-14 to decay?
Which statements best describe medical uses for radioactive isotopes? Check all that apply.Radioactive isotopes are used to detect medical problems.High-energy gamma rays are injected into the body.Radioactive isotopes are used to treat some diseases.Radiation is used to kill cancer cells.Radioactive isotopes are directed at tumors from outside the body.
Archaeologists use radioactive isotopes to .
Geologists use radioactive isotopes to .
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