Skip to main content
Ch.10 - Chemical Bonding I: The Lewis Model
Tro - Chemistry: A Molecular Approach 5th Edition
Tro5th EditionChemistry: A Molecular ApproachISBN: 9780134874371Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoTro 5th EditionCh.10 - Chemical Bonding I: The Lewis ModelProblema 68
Capitolo 10, Problema 68

In N2O, nitrogen is the central atom and the oxygen atom is terminal. In OF2, however, oxygen is the central atom. Use formal charges to explain why.

Guida verificata passo dopo passo
1
insert step 1> Identify the formal charge formula: Formal charge = (Valence electrons) - (Non-bonding electrons) - (Bonding electrons/2).
insert step 2> Calculate the formal charges for each atom in N2O with nitrogen as the central atom: Consider the possible Lewis structures and calculate the formal charges for nitrogen and oxygen.
insert step 3> Calculate the formal charges for each atom in OF2 with oxygen as the central atom: Consider the possible Lewis structures and calculate the formal charges for oxygen and fluorine.
insert step 4> Compare the formal charges: The most stable structure is the one where the formal charges are minimized and closest to zero.
insert step 5> Explain the stability: In N2O, having nitrogen as the central atom results in a more stable structure with minimized formal charges, whereas in OF2, oxygen as the central atom results in minimized formal charges, explaining the observed structures.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
3m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

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 bonds, and the number of non-bonding electrons. It helps in determining the most stable structure of a molecule by minimizing the formal charges across all atoms. A lower formal charge on an atom generally indicates a more stable configuration.
Video consigliato:
Percorso guidato
01:53
Formal Charge

Molecular Geometry

Molecular geometry refers to the three-dimensional arrangement of atoms within a molecule. The central atom's position and the surrounding atoms influence the overall shape, which can affect the molecule's reactivity and properties. Understanding molecular geometry is crucial for predicting how atoms will bond and interact in different compounds.
Video consigliato:
Percorso guidato
01:33
Molecular Geometry with Two Electron Groups

Central vs. Terminal Atoms

In a molecule, central atoms are typically bonded to multiple other atoms, while terminal atoms are usually bonded to only one other atom. The choice of which atom is central can affect the distribution of electrons and the overall stability of the molecule. In the case of N2O and OF2, the central atom's identity influences the formal charge calculations, leading to different preferred structures.
Video consigliato:
Percorso guidato
01:36
Atoms vs. Ions
Pratica correlata
Domanda del libro di testo

How important is the resonance structure shown here to the overall structure of carbon dioxide? Explain.

963
views
Domanda del libro di testo

Draw the Lewis structure (including resonance structures) for methyl azide (CH3N3). For each resonance structure, assign formal charges to all atoms that have formal charge.

2220
views
Domanda del libro di testo

What are the formal charges of the atoms shown in red?

683
views
Domanda del libro di testo

Use formal charges to identify the better Lewis structure.

1166
views
1
rank
Domanda del libro di testo

Draw the Lewis structure (including resonance structures) for the acetate ion (CH3COO-). For each resonance structure, assign formal charges to all atoms that have formal charge.

1572
views
Domanda del libro di testo

Write a Lewis structure that obeys the octet rule for each ion. Include resonance structures if necessary and assign formal charges to each atom. a. ClO3- b. ClO4- c. NO3- d. NH4+

1632
views