HIGH SCHOOL ACE: Challenge Yourself!

    Nuclear Physics Quiz
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Radioactive ____ has a half-life of about 4.5 billion years. carbon-14
Radioactive ____ has a half-life of about 1.2 billion years. deuterium (H-2)
A stable isotope of hydrogen with one neutron is ____. phosphorus-32
Radioactive ____ has a half-life of about 12 years. plutonium-239
Radioactive ____ has a half-life of about 24,000 years. potassium-40
Radioactive ____ has a half-life of about 14 days. protium (H-1)
A ____ atom has one proton and zero neutrons. tritium (H-3)
Radioactive ____ has a half-life of about 5,730 years. uranium-238

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