Complete the Following Chart, in Order from Left to Right

question 120

Multiple Choice

Complete the following chart, in order from left to right $\begin{array}{|c|c|c|c|c|}\hline \text { Isotope } & \text { Mass Number } & \text { Protons } & \text { Neutrons } & \text { Electrons } \\\hline & 40 & 19 & & 19 \\\hline\end{array}$

• A) (⁴⁰Zr), 21
• B) (¹⁹K), 40
• C) (²¹K), 19
• D) (⁴⁰K), 21
• E) (³⁸Sr), 19

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