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ddd [48]
2 years ago
9

Suppose that three isotopes of element X occur in nature as follows:

Chemistry
1 answer:
morpeh [17]2 years ago
5 0

Answer:

107.5 amu

Explanation:

isotopes:                                                                     fractional      Wt Avg

           isotopes: isotopic mass   %Abundance      abundance      (amu)    

              X110              110                          60                0.60            66.0

             X105              105                         30                0.30             31.5

<u>              X100              100                         10                 0.10             10.0</u>

                                                      ∑ atm mass contributions      =    107.5 amu*

*amu = atomic mass units

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