APFIVE Calculating Average Atomic Mass
The masses and natural abundances for the three isotopes of element X are as follows: 27.977 amu (92.23%), 28.976 amu (4.67%), and 29.974 amu (3.10%). What is the average atomic mass of element X?
A
28.00 amu
B
28.97 amu
C
29.00 amu
D
28.09 amu
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