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Organization of the Periodic Table

Read each description in the first column of the table below. If any chemical element with an atomic number of 92 or less matches the description, check Yes and enter the chemical symbol of an element that matches. Otherwise, check No in the second column.

\begin{tabular}{|c|c|c|c|}
\hline
Description & \multicolumn{2}{|c|}{\begin{tabular}{c}
Does any element \\
with [tex]$Z \leq 92$[/tex] match \\
the description?
\end{tabular}} & \begin{tabular}{c}
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 & No & [tex]$\square$[/tex] \\
\hline
A semimetal in Group 4A. & Yes & No & [tex]$\square$[/tex] \\
\hline
\begin{tabular}{c}
A noble gas with a higher atomic \\
number than chlorine.
\end{tabular} & Yes & No & [tex]$\square$[/tex] \\
\hline
A transition element in Period 4. & Yes & No & [tex]$\square$[/tex] \\
\hline
\end{tabular}



Answer :

GinnyAnswer
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.

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