Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of the book is paired with a similar one that is not.
Verify that the atomic weight of lithium is 6.941 amu, given this information:
6Li, exact mass = 6.015121 amu
percent abundance = 7.500%
7Li, exact mass = 7.016003 amu
percent abundance = 92.50%
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