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The Average Atomic Mass of Lithium Is 6

Question 10

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 mass of 7Li?


A) 7.016 amu
B) 0.926 amu
C) 6.001 amu
D) 7.000 amu
E) 6.941 amu

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