Let's analyze each description given in the table and determine whether the description matches any chemical element with an atomic number (Z) of 92 or less.
### Description 1: An element in Period 3 and Group 7A.
- Does any element with Z ≤ 92 match the description? Yes
- Element symbol: Cl (Chlorine)
### Description 2: A semimetal in Group 4A.
- Does any element with Z ≤ 92 match the description? Yes
- Element symbol: Ge (Germanium)
### Description 3: A noble gas with a higher atomic number than chlorine.
- Does any element with Z ≤ 92 match the description? Yes
- Element symbol: Ar (Argon)
### Description 4: A transition element in Period 4.
- Does any element with Z ≤ 92 match the description? Yes
- Element symbol: Sc (Scandium)
### Completed Table
\begin{tabular}{|c|c|c|c|}
\hline
description & \multicolumn{2}{|c|}{\begin{tabular}{l}
Does any element \\
with [tex]$Z \leq 92$[/tex] match \\
the description?
\end{tabular}} & \begin{tabular}{l}
If you checked yes, give \\
the symbol of an \\
element with [tex]$Z \leq 92$[/tex] \\
that matches.
\end{tabular} \\
\hline
An element in Period 3 and Group 7A. & Yes & & Cl \\
\hline
A semimetal in Group 4A. & Yes & & Ge \\
\hline
\begin{tabular}{l}
A noble gas with a higher atomic \\
number than chlorine.
\end{tabular} & Yes & & Ar \\
\hline
A transition element in Period 4. & Yes & & Sc \\
\hline
\end{tabular}
Each description matches with the respective chemical element provided in the third column, ensuring that there are no discrepancies and that each element matches the given conditions.
