The element lithium has an atomic weight of 6.941 amu. There are only two isotopes of lithium, Li with a mass of 6.0151223 amu and 7Li with a mass of 7.0160040 amu. What are the percent isotopic abundances of lithium? A Li = 8.26%, "Li = 91.74% B Li = 7.49%, Li = 92.51% Li = 9.87%, "Li = 90.13% Li = 9.42%, "Li = 90.58%
The element lithium has an atomic weight of 6.941 amu. There are only two isotopes of lithium, Li with a mass of 6.0151223 amu and 7Li with a mass of 7.0160040 amu. What are the percent isotopic abundances of lithium? A Li = 8.26%, "Li = 91.74% B Li = 7.49%, Li = 92.51% Li = 9.87%, "Li = 90.13% Li = 9.42%, "Li = 90.58%
Chemistry for Engineering Students
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Chapter2: Atoms And Molecules
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Problem 2.16PAE: The element gallium, used in gallium arsenide semiconductors, has an atomic weight of 69.72 amu....
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Transcribed Image Text:The element lithium has an atomic weight of 6.941 amu. There are only two isotopes of lithium, Li with a mass of 6.0151223 amu
and 7Li with a mass of 7.0160040 amu. What are the percent isotopic abundances of lithium?
A Li = 8.26%, 7Li = 91.74%
B Li = 7.49%, 7Li = 92.51%
Li = 9.87%, "Li = 90.13%
D) Li = 9.42%, 7Li = 90.58%
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