The Element Zinc Has Two Naturally Occurring Isotopes The Atomic Mass of Naturally Occurring Zinc Is
A) 112

Multiple Choice

The element zinc has two naturally occurring isotopes. The natural abundances and isotopic masses are

$\begin{array}{|l|l|l|}\hline \text { Isotope } & \% \text { Abundance } & \text { Isotopic Mass } \\\hline & & \\\hline { }^{113} \mathrm{Zn}& 4.29 & 112.904 \\\hline { }^{115} \mathrm{Zn}& 95.71 & 114.904 \\\hline\end{array}$

The atomic mass of naturally occurring zinc is

A) 112.990
B) 113.582
C) 113.904
D) 114.582
E) 114.818