Multiple Choice
The mass spectrum of an element with two naturally occurring isotopes is shown below.What is the best estimate of the element's (average) atomic weight? 
A) 10 amu
B) 11 amu
C) 10.8 amu
D) 10.2 amu
E) 10.5 amu
Correct Answer:
Verified
Correct Answer:
Verified
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