A radioactive sample initially contained 1000 radioactive atoms. After 60 minutes, only 250 radioactive atoms remained. What is the isotope's half-life in minutes? a. 60 b. 30 c. 20 d. 15 e. no correct response

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.