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Biology and Chemistry Homework Help
Isotopes, atomic mass, abundance
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[QUOTE="CMATT, post: 5494000, member: 579693"] [h2]Homework Statement [/h2] Suppose the element A contains three isotopes, 86A (atomic mass 85.909 u, abundance 16.19%) 87A (atomic mass 86.908, abundance 7.00%) and 88A (atomic mass 87.906 u). What would be the atomic mass of A that would appear in the periodic table? [h2]Homework Equations[/h2] (A1 x %A1) + (A2 x %A2) + (A3 x (1-(%1 +%2)) = answer [h2]The Attempt at a Solution[/h2] 16.19% + 7.00% = 23.19% 100% - 23.19% = 76.81% --> so that would be the 88A abundance % right? then I'm confused from there. Please help [/QUOTE]
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Biology and Chemistry Homework Help
Isotopes, atomic mass, abundance
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