Free Atomic Structure and Periodicity Quiz | University Admission Chemistry Practice

Atomic Structure and Periodicity

Question 1 of 5

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The mass spectrum of a naturally occurring sample of element Z is shown below. Only two singly charged ions, both of the form \(\mathrm{Z^+}\), are detected.

What is the relative atomic mass of Z, and what is the percentage abundance of the heavier isotope?

Select one option.

\(70.0\); \(50.0\%\)
\(70.2\); \(60.0\%\)
\(69.8\); \(66.7\%\)
\(69.8\); \(40.0\%\)
\(69.8\); \(60.0\%\)

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