A Certain Element Is Composed of Two Isotopes,having the Mass

question 30

Multiple Choice

A certain element is composed of two isotopes,having the mass and abundance shown in the table.What is the average atomic mass for this element? Mass
Abundance
Isotope 1
35.0 u
75.8%
Isotope 2
37.0 u
24.2%

• A) 36.0 u
• B) 35.5 u
• C) 37.0 u
• D) 921.9 u

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