Questions: description Does any element with Z ≤ 92 match the description? If you checked yes, give the symbol of an element with Z ≤ 92 that matches. --------- An element in Period 5 and Group 1A. Yes No Rb A semimetal in Group 8A. Yes No

description  Does any element with Z ≤ 92 match the description?  If you checked yes, give the symbol of an element with Z ≤ 92 that matches.
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An element in Period 5 and Group 1A.  Yes   No  Rb
A semimetal in Group 8A.  Yes   No
Transcript text: \begin{tabular}{|l|c|c|} \hline description & \begin{tabular}{c} Does any element \\ with $Z \leq 92$ match \\ the description? \end{tabular} & \begin{tabular}{c} If you checked yes, give \\ the symbol of an \\ element with $Z \leq 92$ \\ that matches. \end{tabular} \\ \hline An element in Period 5 and Group 1A. & Yes $\quad$ No & Rb \\ \hline A semimetal in Group 8A. & Yes $\quad$ No & \\ \hline \end{tabular}
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Solution

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Determine if there is an element in Period 5 and Group 1A with \( Z \leq 92 \).

Identify Period 5, Group 1A element

Period 5, Group 1A of the periodic table contains alkali metals. The element in this position is Rubidium (Rb).

Check atomic number

Rubidium (Rb) has an atomic number \( Z = 37 \), which is less than 92.

\(\boxed{\text{Yes, Rb}}\)

Determine if there is a semimetal in Group 8A with \( Z \leq 92 \).

Identify Group 8A elements

Group 8A of the periodic table contains noble gases, which are not semimetals.

Check for semimetals

Semimetals are typically found in groups 13-16, not in Group 8A. Therefore, there are no semimetals in Group 8A.

\(\boxed{\text{No}}\)

Yes, Rb No

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