Using the list of naturally occurring isotopes, account for the isotopic distrib

Question

Using the list of naturally occurring isotopes, account for the isotopic distribution pattern shown below. The mass spectrum of S8 shows other peaks at lower values of m/z. Suggest the origin of these lower mass peaks.

Using the list of naturally occurring isotopes, account for the isotopic distribution pattern shown below. The mass spectrum of S8 shows other peaks at lower values of m/z. Suggest the origin of these lower mass peaks Isotope Abundance 100 95.02 S-32 S-33 0.75 S-34 4.21 S-36 0.02 50 25 256 258 260 Mass number

Explanation / Answer

Those are isotopes, which are not that ommon in nature

i.e.

The 257 mass number is essentially = 257-128= 129 neutrons

The 259 mass number is essentially = 259-128= 131 neutrons

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