The Mass Spectrum of an Element with Two Naturally Occurring

question 86

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

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