Questions: proposed Lewis structure Is the proposed Lewis structure reasonable? [: O ≡ C-H]^+ Yes. No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* [* * N-N= N ... *]^- Yes. No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* * If two or more atoms of the same element don't satisfy the octet rule, just enter the chemical symbol as many times as necessary. For example, if two oxygen atoms don't satisfy the octet rule, enter "O,O".

proposed Lewis structure Is the proposed Lewis structure reasonable? [: O ≡ C-H]^+ Yes. No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* [* * N-N= N ... *]^- Yes. No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* * If two or more atoms of the same element don't satisfy the octet rule, just enter the chemical symbol as many times as necessary. For example, if two oxygen atoms don't satisfy the octet rule, enter "O,O".
Transcript text: proposed Lewis structure & Is the proposed Lewis structure reasonable? \\ $[: \mathrm{O} \equiv \mathrm{C}-\mathrm{H}]^{+}$ & Yes. No, it has the wrong number of valence electrons. \\ The correct number is: $\square$ \\ No, it has the right number of valence electrons but doesn't satisfy the octet rule. \\ The symbols of the problem atoms are:* $\square$ \\ $\left[\begin{array}{ll}* \& * \\ \mathrm{~N}-\mathrm{N}= \& \mathrm{N} \\ \cdots \& *\end{array}\right]^{-}$ & Yes. No, it has the wrong number of valence electrons. \\ The correct number is: $\square$ No, it has the right number of valence electrons but doesn't satisfy the octet rule. \\ The symbols of the problem atoms are:* $\square$ \\ * If two or more atoms of the same element don't satisfy the octet rule, just enter the chemical symbol as many times as necessary. For example, if two oxygen atoms don't satisfy the octet rule, enter "O,O".
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Solution

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Solution Steps

Step 1: Analyze the Lewis Structure for \([: \mathrm{O} \equiv \mathrm{C}-\mathrm{H}]^{+}\)

  1. Count the Valence Electrons:

    • Oxygen (O) has 6 valence electrons.
    • Carbon (C) has 4 valence electrons.
    • Hydrogen (H) has 1 valence electron.
    • The positive charge indicates a loss of 1 electron.
    • Total valence electrons = \(6 + 4 + 1 - 1 = 10\).

  2. Evaluate the Structure:

    • The structure \([: \mathrm{O} \equiv \mathrm{C}-\mathrm{H}]^{+}\) has 10 electrons, which matches the calculated total.
    • Check the octet rule:
      • Oxygen has 8 electrons (satisfied).
      • Carbon has 8 electrons (satisfied).
      • Hydrogen has 2 electrons (satisfied).

  3. Conclusion:

    • The proposed Lewis structure is reasonable.
Step 2: Analyze the Lewis Structure for \(\left[\begin{array}{ll}* \& * \\ \mathrm{~N}-\mathrm{N}= \& \mathrm{N} \\ \cdots \& *\end{array}\right]^{-}\)

  1. Count the Valence Electrons:

    • Each Nitrogen (N) has 5 valence electrons.
    • The negative charge indicates an addition of 1 electron.
    • Total valence electrons = \(3 \times 5 + 1 = 16\).

  2. Evaluate the Structure:

    • The structure should have 16 electrons.
    • Check the octet rule:
      • Each nitrogen should have 8 electrons.

  3. Conclusion:

    • Without the specific arrangement of electrons, it's difficult to determine if the octet rule is satisfied. However, the total number of valence electrons is correct.
Step 3: Analyze the Third Lewis Structure

  1. Count the Valence Electrons:

    • The structure is not provided, so we cannot count the valence electrons or evaluate the structure.

  2. Conclusion:

    • Unable to analyze due to missing information.

Final Answer

  • For \([: \mathrm{O} \equiv \mathrm{C}-\mathrm{H}]^{+}\): Yes, the proposed Lewis structure is reasonable.
  • For \(\left[\begin{array}{ll}* \& * \\ \mathrm{~N}-\mathrm{N}= \& \mathrm{N} \\ \cdots \& *\end{array}\right]^{-}\): The correct number of valence electrons is \(\boxed{16}\).
  • The third structure cannot be analyzed due to missing information.
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