Lithium Forms Compounds Which Are Used in Dry Cells and Storage

question 46

Multiple Choice

Lithium forms compounds which are used in dry cells and storage batteries and in high-temperature lubricants. It has two naturally occurring isotopes, ⁶Li (isotopic mass = 6.015121 amu) and ⁷Li (isotopic mass = 7.016003 amu) . Lithium has an atomic mass of 6.9409 amu. What is the percent abundance of lithium-6?

• A)92.50%
• B)86.66%
• C)46.16%
• D)7.503%
• E)6.080%

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