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Based on the information in the table, which elements are most likely in the same periods of the periodic table?

Facts about Five Elements

\begin{tabular}{|l|c|c|c|c|}
\hline \multicolumn{1}{|c|}{ Element } & \begin{tabular}{c}
Atomic \\
mass (amu)
\end{tabular} & \begin{tabular}{c}
Total \\
electrons
\end{tabular} & \begin{tabular}{c}
Valence \\
electrons
\end{tabular} & Year Isolated \\
\hline Aluminum (Al) & 27 & 13 & 3 & 1825 \\
\hline Boron (B) & 11 & 5 & 3 & 1808 \\
\hline Carbon [tex]$( C )$[/tex] & 12 & 6 & 4 & 1803 \\
\hline Gallium (Ga) & 70 & 31 & 3 & 1875 \\
\hline Germanium (Ge) & 73 & 32 & 4 & 1886 \\
\hline
\end{tabular}

A. Boron and carbon are likely together in one period because they have very close atomic masses, while gallium and germanium are likely together in another period because they have very close atomic masses.

B. Aluminum, boron, and carbon are likely together in one period because they were first isolated in the first half of the 1800s, while gallium and germanium are likely together in another period because they were first isolated in the second half.

C. Boron and carbon are likely together in one period because they each end in "-on," while aluminum, gallium, and germanium are likely together in another period because they each end in "-ium."

D. Aluminum, boron, and gallium are likely together in one group because they have the same number of valence electrons.

Sagot :

GinnyAnsweridn
To determine which elements are most likely in the same group of the periodic table, let's analyze the provided data focusing on the valence electrons, as elements in the same group on the periodic table usually share the same number of valence electrons.

Here is the detailed information about the five elements:

1. Aluminum (Al)
- Total electrons: 13
- Valence electrons: 3
- Year isolated: 1825

2. Boron (B)
- Total electrons: 5
- Valence electrons: 3
- Year isolated: 1808

3. Carbon (C)
- Total electrons: 6
- Valence electrons: 4
- Year isolated: 1803

4. Gallium (Ga)
- Total electrons: 31
- Valence electrons: 3
- Year isolated: 1875

5. Germanium (Ge)
- Total electrons: 32
- Valence electrons: 4
- Year isolated: 1886

Let's consider the valence electrons to determine group memberships:

- Aluminum (Al) has 3 valence electrons.
- Boron (B) has 3 valence electrons.
- Carbon (C) has 4 valence electrons.
- Gallium (Ga) has 3 valence electrons.
- Germanium (Ge) has 4 valence electrons.

From this information, we can observe the following:
- Aluminum (Al), Boron (B), and Gallium (Ga) each have 3 valence electrons. Elements with the same number of valence electrons tend to be in the same group.

Therefore, Aluminum, Boron, and Gallium are most likely to belong to the same group in the periodic table because they all have the same number of valence electrons, which supports the typical organization of elements in the periodic table.