Each Atom in a Sample of Lithium (Z=3, Atomic Mass

question 71

Multiple Choice

Each atom in a sample of lithium (Z=3, atomic mass 6.941u) has one electron removed. If a charge of magnitude 1.0 mC was collected in this way, what is the mass of the lithium sample?

• A) 0.024 µg
• B) 0.010 µg
• C) 0.031 µg
• D) 0.072 µg

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