Question
The atomic mass of chlorine is reported to be $35.5,$ yet no atom of chlorine has the mass of 35.5 amu. Explain.
Step 1
The atomic mass of chlorine is reported to be 35.5 atomic mass units (amu), but this does not mean that there is an isotope of chlorine with this exact mass. Show more…
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The atomic mass of fluorine is 18.998 amu, and its mass spectrum shows a large peak at this mass. The atomic mass of chlorine is 35.45 amu, yet the mass spectrum of chlorine does not show a peak at this mass. Explain the difference.
The atomic mass of fluorine is 19.00 amu, and all fluorine atoms in a naturally occurring sample of fluorine have this mass. The atomic mass of chlorine is 35.45 amu, but no chlorine atoms in a naturally occurring sample of chlorine have this mass. Provide an explanation for the difference.
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