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OpenStudy (anonymous):
When radium-226 decays to form radon-222, the radium nucleus emits a(an) A. alpha particle. B. beta particle. C. gamma ray. D. electron.
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OpenStudy (anonymous):
Alpha particle has 2 protons and 2 neutrons. So that would be 4 nucleons.
OpenStudy (anonymous):
so it would be A?
OpenStudy (anonymous):
Yes it is.
OpenStudy (anonymous):
yup, A
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