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Chemistry 14 Online
OpenStudy (casadie1004):

Fan and medle! one-____ of a sample of radioactive material remains after 2 half-life have passed

OpenStudy (casadie1004):

Medal**

OpenStudy (casadie1004):

Its 7 letters

Arcadiouse (arcadiouse):

Isotope?

OpenStudy (casadie1004):

Thank uuu

Arcadiouse (arcadiouse):

Don't forget to close the post.

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