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OpenStudy (superhelp101):
When a radioactive isotope releases an alpha particle, the mass number of the atom is decreased by two. decreased by four. increased by two. increased by four.
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OpenStudy (superhelp101):
@JoannaBlackwelder this is C right ?
OpenStudy (joannablackwelder):
I think when an isotope releases an alpha particle, that the mass would decrease by 2, not increase.
OpenStudy (superhelp101):
wait yes sorry that is what i meant!! opps again. thanks!
OpenStudy (joannablackwelder):
No worries :)
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