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Question
When a radioactive isotope decays by electron capture, the electron ________.A) combines with a neutron in the nucleus, raising the mass number of the daughter isotope by one
B) combines with a proton in the nucleus; the atomic number of the daughter is one less than the parent
C) makes the parent isotope into an ion with a charge of negative one
D) makes the daughter isotope into an ion with a charge of positive one
Answer
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