The Average Atomic Mass of Lithium Is 6

question 37

Multiple Choice

The average atomic mass of lithium is 6.941 amu.Lithium has two naturally occurring isotopes, ⁶Li (7.52%) and ⁷Li (92.48%) .The mass of ⁶Li is 6.0151 amu.What is the isotopic mass of ⁷Li?

• A)7.016 amu
• B)7.505 amu
• C)6.001 amu
• D)7.000 amu
• E)6.941 amu

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