| Question 2.3 |
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| • | The element neon
has three naturally |
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| occurring
isotopes. One of these has a mass |
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| of 19.99 amu and
a natural abundance of |
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| 90.48%. A second
isotope has a mass of |
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| 20.99 amu and a natural abundance of |
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| 0.27%. A third has a mass of 21.99 amu |
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| and a natural
abundance of 9.25%. |
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| Calculate the
atomic mass of neon. |
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