By moving an electron pair, draw a better Lewis structure that minimizes formal charges.
(b)

검증된 단계별 안내

Analyze the given Lewis structure: The nitrogen atom has a lone pair and a negative formal charge, while the central carbon atom has a positive formal charge. This suggests that the electron distribution can be adjusted to minimize formal charges.

Recall the rules for formal charge calculation: Formal charge = (Valence electrons) - (Non-bonding electrons) - (Bonding electrons/2). Use this formula to evaluate the charges on each atom in the structure.

Identify the possibility of moving the lone pair from nitrogen to form a double bond with the central carbon atom. This would redistribute the electrons and potentially neutralize the charges on both nitrogen and carbon.

Redraw the structure with the lone pair on nitrogen converted into a double bond between nitrogen and carbon. This adjustment should result in nitrogen having a formal charge of 0 and carbon also having a formal charge of 0.

Verify the new structure by recalculating the formal charges for all atoms. Ensure that the charges are minimized and the octet rule is satisfied for each atom where applicable.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Lewis Structures

Lewis structures are diagrams that represent the bonding between atoms in a molecule and the lone pairs of electrons that may exist. They help visualize the arrangement of electrons and the connectivity of atoms, which is crucial for understanding molecular geometry and reactivity. In this context, drawing a better Lewis structure involves rearranging electron pairs to achieve a more stable configuration.

Formal Charge

Formal charge is a theoretical charge assigned to an atom in a molecule, calculated based on the number of valence electrons, the number of non-bonding electrons, and half the number of bonding electrons. It helps assess the stability of a Lewis structure; structures with lower formal charges are generally more stable. Minimizing formal charges is essential for drawing accurate and stable Lewis structures.

Electron Pair Movement

Electron pair movement refers to the process of shifting lone pairs or bonding pairs of electrons to form new bonds or to create more favorable electron distributions in a molecule. This concept is vital when optimizing Lewis structures, as moving electron pairs can help minimize formal charges and achieve a more stable arrangement of atoms. Understanding how to manipulate electron pairs is key to drawing accurate representations of molecular structures.

By moving an electron pair, draw a better Lewis structure that minimizes formal charges. (b)