During a Chemistry Lab, Students Were Asked to Study a Radioactive

Essay

During a chemistry lab, students were asked to study a radioactive element which decays
over time. The results are in the table. $$\begin{array} { | l | c | c | c | c | c | c | } \hline \text { Time (in days) } & 0 & 2 & 4 & 6 & 8 & 10 \\\hline \text { Element (in grams) } & 320 & 226 & 160 & 115 & 80 & 57 \\\hline\end{array}$$
a. Model the remaining mass of the element.
b. Find the predicted amount of the element remaining after thirty minutes.