Domanda del libro di testo
Draw a picture that shows all three 2p orbitals on one atom and all three 2p orbitals on another atom. (c) How many antibonding orbitals, and of what type can be made from the two sets of 2p orbitals?
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Ch.9 - Molecular Geometry and Bonding Theories
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Capitolo 9, Problema 72c
(c) Calculate the bond order in H2-.
Guida verificata passo dopo passo1
Identify the molecular orbitals involved in the bonding of the hydrogen molecule ion \( \text{H}_2^- \).
Determine the total number of electrons in \( \text{H}_2^- \). Since each hydrogen atom contributes one electron and there is an additional electron due to the negative charge, there are 3 electrons in total.
Fill the molecular orbitals with the electrons, starting with the lowest energy level. The order is: \( \sigma_{1s} \) and \( \sigma^*_{1s} \).
Calculate the bond order using the formula: \( \text{Bond Order} = \frac{1}{2} (\text{Number of bonding electrons} - \text{Number of antibonding electrons}) \).
Determine the number of electrons in bonding and antibonding orbitals, and apply them to the bond order formula to find the bond order of \( \text{H}_2^- \).
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Bond Order
Bond order is a measure of the number of chemical bonds between a pair of atoms. It is calculated as the difference between the number of bonding electrons and the number of antibonding electrons, divided by two. A higher bond order indicates a stronger bond and greater stability of the molecule.
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Percorso guidato
00:36
Average Bond Order
Molecular Orbital Theory
Molecular Orbital Theory describes the behavior of electrons in molecules using molecular orbitals, which are formed by the combination of atomic orbitals. In this theory, electrons occupy these orbitals, which can be bonding or antibonding. Understanding how these orbitals are filled is crucial for determining bond order and the stability of the molecule.
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03:06Molecular Orbital Theory
Electron Configuration of H2-
H2- is a molecular ion consisting of two hydrogen atoms and an extra electron, resulting in a total of three electrons. The electron configuration for H2- involves filling the bonding molecular orbital (σ1s) with two electrons and the antibonding molecular orbital (σ*1s) with one electron. This configuration is essential for calculating the bond order and understanding the stability of the ion.
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01:33Electron Configuration Example
Pratica correlata
Domanda del libro di testo
Consider the H2+ ion. (f) Which of the following statements about part (e) is correct: (i) The light excites an electron from a bonding orbital to an antibonding orbital, (ii) The light excites an electron from an antibonding orbital to a bonding orbital, or (iii) In the excited state there are more bonding electrons than antibonding electrons?
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Domanda del libro di testo
Consider the H2+ ion. (e) Suppose that the ion is excited by light so that an electron moves from a lower-energy to a higher-energy MO. Would you expect the excited-state H2+ ion to be stable or to fall apart?
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Domanda del libro di testo
Draw a picture that shows all three 2p orbitals on one atom and all three 2p orbitals on another atom. (b) How many p bonds can the two sets of 2p orbitals make with each other?
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Domanda del libro di testo
Draw a picture that shows all three 2p orbitals on one atom and all three 2p orbitals on another atom. (a) Imagine the atoms coming close together to bond. How many σ bonds can the two sets of 2p orbitals make with each other?