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Find the average atomic mass of neon, given the atomic masses and relative abundance of its three isotopes. Ne-20: 19.992 amu; 90.48% Ne-21: 20.993 amu; 0.27% Ne-22: 21.991 amu;…

Find the average atomic mass of neon, given the atomic masses and relative abundance of its three isotopes. Ne-20: 19.992 amu; 90.48% Ne-21: 20.993 amu; 0.27% Ne-22: 21.991 amu;…
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Find the average atomic mass of neon, given the atomic masses and relative abundance of its three isotopes.

Ne-20: 19.992 amu; 90.48%
Ne-21: 20.993 amu; 0.27%
Ne-22: 21.991 amu; 9.25%


A. 20.992 amu


B. 19.992 amu


C. 20.1797 amu


D. 20.688 amu

User Erwin Wessels
by
8.2k points

1 Answer

5 votes
19.992*0.9048+20.993*0.0027+21.991+0.0925 = 20.1797 amu (C)
User Emalamisura
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