Domanda del libro di testo
(c) Calculate the bond order in H2-.
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Ch.9 - Molecular Geometry and Bonding Theories
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement146
- Ch.2 - Atoms, Molecules, and Ions200
- Ch.3 - Chemical Reactions and Reaction Stoichiometry176
- Ch.4 - Reactions in Aqueous Solution155
- Ch.5 - Thermochemistry126
- Ch.6 - Electronic Structure of Atoms131
- Ch.7 - Periodic Properties of the Elements126
- Ch.8 - Basic Concepts of Chemical Bonding123
- Ch.9 - Molecular Geometry and Bonding Theories143
- Ch.10 - Gases147
- Ch.11 - Liquids and Intermolecular Forces91
- Ch.12 - Solids and Modern Materials122
- Ch.13 - Properties of Solutions126
- Ch.14 - Chemical Kinetics174
- Ch.15 - Chemical Equilibrium101
- Ch.16 - Acid-Base Equilibria139
- Ch.17 - Additional Aspects of Aqueous Equilibria146
- Ch.18 - Chemistry of the Environment72
- Ch.19 - Chemical Thermodynamics129
- Ch.20 - Electrochemistry142
- Ch.21 - Nuclear Chemistry101
- Ch.22 - Chemistry of the Nonmetals68
- Ch.23 - Transition Metals and Coordination Chemistry66
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry10
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970Non è quello che usi tu?Cambia libro di testo
Capitolo 9, Problema 73c
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?
Guida verificata passo dopo passo1
Step 1: To draw the 2p orbitals, you need to remember that p orbitals are dumbbell-shaped and there are three of them, each oriented along a different axis (x, y, and z). Draw two atoms, each with three 2p orbitals. The orbitals should be perpendicular to each other, representing the three different axes.
Step 2: Label the orbitals as 2px, 2py, and 2pz for each atom. The labels represent the axes along which the orbitals are oriented.
Step 3: To determine the number of antibonding orbitals, remember that when two atomic orbitals combine, they form a bonding orbital and an antibonding orbital. Therefore, the six 2p orbitals from the two atoms can form three bonding orbitals and three antibonding orbitals.
Step 4: The type of antibonding orbitals formed depends on the orientation of the combining orbitals. When 2px orbitals combine, they form a sigma* (σ*) antibonding orbital. When 2py and 2pz orbitals combine, they form two pi* (π*) antibonding orbitals.
Step 5: So, from the two sets of 2p orbitals, you can form three antibonding orbitals: one sigma* (σ*) and two pi* (π*) orbitals.
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Atomic Orbitals
Atomic orbitals are regions in an atom where there is a high probability of finding electrons. The 2p orbitals are a set of three degenerate orbitals (2px, 2py, 2pz) that can hold a maximum of six electrons. Understanding the shape and orientation of these orbitals is crucial for visualizing how they interact during bonding.
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01:51
Atomic Orbitals Example
Bonding and Antibonding Orbitals
When atomic orbitals combine, they can form bonding and antibonding molecular orbitals. Bonding orbitals result from the constructive interference of wave functions, leading to increased electron density between nuclei, while antibonding orbitals arise from destructive interference, resulting in a node between the nuclei. The type of bonding or antibonding orbital formed depends on the symmetry and orientation of the combining orbitals.
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03:06Molecular Orbital Theory
Molecular Orbital Theory
Molecular Orbital Theory describes how atomic orbitals combine to form molecular orbitals that can be occupied by electrons. In the case of two sets of 2p orbitals from different atoms, the combination can yield bonding and antibonding orbitals. Specifically, from the three 2p orbitals of each atom, a total of six molecular orbitals can be formed, including three bonding and three antibonding orbitals.
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03:06Molecular Orbital Theory
Pratica correlata
Domanda del libro di testo
a. Based on its molecular-orbital diagram, what is the bond order of the O2 molecule?
b. What is the expected bond order for the peroxide ion, O22−?
c. What is the expected bond order for the superoxide ion, O2−?
d. From shortest to longest, predict the ordering of the bond lengths for O2, O22−, and O2−.
e. From weakest to strongest, predict the ordering of the bond strengths for O2, O22−, and O2−.
Domanda del libro di testo
Indicate whether each statement is true or false. (d) Electrons cannot occupy a nonbonding orbital.
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Domanda del libro di testo
Indicate whether each statement is true or false. c. Antibonding orbitals are higher in energy than bonding orbitals (if all orbitals are created from the same atomic orbitals).
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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
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 bond order of the ion does not change when an electron is excited, or iii. In the excited state there are more bonding electrons than antibonding electrons?
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