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OpenStudy (anonymous):
When a radioactive isotope releases an alpha particle, the atomic number of the atom is decreased by one. increased by one. decreased by two. increased by four.
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OpenStudy (anonymous):
@JFraser
OpenStudy (jfraser):
what is an alpha particle made of? what 2 sub-atomic particles?
OpenStudy (anonymous):
umm.. protons and neutrons?
OpenStudy (jfraser):
how many of each?
OpenStudy (anonymous):
2
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OpenStudy (anonymous):
@JFraser
OpenStudy (anonymous):
@aaronq
OpenStudy (aaronq):
you've already mentioned how many protons an alpha particle is composed of, it should be obvious what the answer is
OpenStudy (anonymous):
ohhh. wait so that means it decreased by 2?
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