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Anton created a chart listing different types of materials.

\begin{tabular}{|l|l|}
\hline \multicolumn{1}{|c|}{ Type } & \multicolumn{1}{|c|}{ Example } \\
\hline conductor & silver \\
\hline insulator & X \\
\hline semiconductor & Y \\
\hline superconductor & mercury \\
\hline
\end{tabular}

Which best completes the chart?

A. X: copper, Y: glass
B. X: rubber, Y: copper
C. X: paper, Y: silicon
D. X: silicon, Y: glass



Answer :

GinnyAnswer
To determine which options best complete the chart, let's analyze the types of materials and their associated examples.

The chart lists the following types of materials:
1. Conductor: silver
2. Insulator: X
3. Semiconductor: Y
4. Superconductor: mercury

We need to find suitable examples for X and Y from the provided options.

- Copper is a metal and an excellent conductor, so it cannot be an insulator (X).
- Glass is generally an insulator, but not a semiconductor (Y).
- Rubber is an insulator.
- Paper is also an insulator but it is not highly recognized in such contexts.
- Silicon is a well-known semiconductor.

Given these properties, the correct combinations should be:
- X: Rubber (a known insulator)
- Y: Silicon (a known semiconductor)

So, the best entries to complete the chart are:
[tex]\[ \text{Insulator: Rubber} \][/tex]
[tex]\[ \text{Semiconductor: Silicon} \][/tex]

Hence, the best options are:
[tex]\[ X: \text{Rubber} \][/tex]
[tex]\[ Y: \text{Silicon} \][/tex]

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