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The average mass of boron atoms is 10.81 amu. How would you explain what this means to a friend who had never taken chemistry?
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It is a standard unit of mass that quantifies mass on an atomic or molecular scale. Show more…
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The atomic mass of boron (B) is given in the periodic table as $10.81,$ yet no single atom of boron has a mass of 10.81 amu. Explain.
(a) What isotope is used as the standard in establishing the atomic mass scale? (b) The atomic weight of boron is reported as $10.81,$ yet no atom of boron has the mass of $10.81 \mathrm{u}$. Explain.
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