Step 1 of 5) The lower-energy MO concentrates charge density in the region between the nuclei and is called a bonding molecular orbital. The higher-energy MO excludes electrons from the region between the nuclei and is called an antibonding molecular orbital. Antibonding MOs exclude electron density from the region between the nuclei and have a nodal plane—a place at which the electron density is zero—between the nuclei. Occupation of bonding MOs favors bond formation, whereas occupation of antibonding MOs is unfavorable. The bonding and antibonding MOs formed by the combination of s orbitals are sigma 1S2 molecular orbitals; they lie on the internuclear axis. The combination of atomic orbitals and the relative energies of the molecular orbitals are shown by an energy-level (or molecular orbital) diagram. When the appropriate number of electrons is put into the MOs, we can calculate the bond order of a bond, which is half the difference between the number of electrons in bonding MOs and the number of electrons in antibonding MOs. A bond order of 1 corresponds to a single bond, and so forth. Bond orders can be fractional numbers.
Until the early 1960s, the group 8A elements were called the inert gases. (a) Why was the term inert gases dropped? (b) What discovery triggered
ISBN: 9780134414232
1274
Solution for problem 7.75 Chapter 7
Chemistry: The Central Science | 14th Edition
- Textbook Solutions
- 2901 Step-by-step solutions solved by professors and subject experts
- Get 24/7 help from StudySoup virtual teaching assistants
22
0
Problem 7.75
Until the early 1960s, the group 8A elements were called the inert gases. (a) Why was the term inert gases dropped? (b) What discovery triggered this change in name? (c) What name is applied to the group now?
Step-by-Step Solution:
Step 2 of 2
Other solutions
Discover and learn what students are asking
Calculus: Early Transcendental Functions :
Integration
?In Exercises 1–6, find the indefinite integral. \(\int\left(5-e^{x}\right) d x\)
?In Exercises 1–6, find the indefinite integral. \(\int\left(5-e^{x}\right) d x\)
Calculus: Early Transcendental Functions :
The Derivative and the Tangent Line Problem
?Using the Alternative Form of the Derivative In Exercises 65–74, use the alternative form of the derivative to find the derivative at \(x=c\) (if it e
?Using the Alternative Form of the Derivative In Exercises 65–74, use the alternative form of the derivative to find the derivative at \(x=c\) (if it e
Calculus: Early Transcendental Functions :
Sequences
?Listing the Terms of a Sequence In Exercises 1-6,write the first five terms of the sequence. \(a_{n}=\left(-\frac{2}{5}\right)^{n}\)
?Listing the Terms of a Sequence In Exercises 1-6,write the first five terms of the sequence. \(a_{n}=\left(-\frac{2}{5}\right)^{n}\)
Chemistry: The Central Science :
Chemical Kinetics
Consider the data presented in Exercise 14.20. (a) Determine whether the reaction is first order or second order. (b) What is the rate cons
Consider the data presented in Exercise 14.20. (a) Determine whether the reaction is first order or second order. (b) What is the rate cons
Chemistry: The Central Science :
Chemical Thermodynamics
?The accompanying diagram shows how the free energy, G, changes during a hypothetical reaction \(\mathrm{A}(g)+\mathrm{B}(g) \longrightarrow \mathrm{C}
?The accompanying diagram shows how the free energy, G, changes during a hypothetical reaction \(\mathrm{A}(g)+\mathrm{B}(g) \longrightarrow \mathrm{C}
Chemistry: The Central Science :
Liquids and Intermolecular Forces
In terms of the arrangement and freedom of motion of the molecules, how are the nematic liquid crystalline phase and an ordinary liquid phase similar?
In terms of the arrangement and freedom of motion of the molecules, how are the nematic liquid crystalline phase and an ordinary liquid phase similar?
Statistics: Informed Decisions Using Data :
The Design of Experiments
?Alcohol Dependence To determine if topiramate is a safe and effective treatment for alcohol dependence, researchers conducted a 14-week trial of 371 m
?Alcohol Dependence To determine if topiramate is a safe and effective treatment for alcohol dependence, researchers conducted a 14-week trial of 371 m
Statistics: Informed Decisions Using Data :
The Design of Experiments
?Green Tea You wonder whether green tea lowers cholesterol. (a) To research the claim that green tea lowers LDL (so-called bad) cholesterol, you a
?Green Tea You wonder whether green tea lowers cholesterol. (a) To research the claim that green tea lowers LDL (so-called bad) cholesterol, you a
Statistics: Informed Decisions Using Data :
Applications of the Normal Distribution
?Explain why P(X < 30) should be reported as < 60.0001 if X is a normal random variable with mean 100 and standard deviation 15.
?Explain why P(X < 30) should be reported as < 60.0001 if X is a normal random variable with mean 100 and standard deviation 15.
Chemistry: The Central Science :
Chemical Reactions and Reaction Stoichiometry
?Epsom salts, a strong laxative used in veterinary medicine, is a hydrate, which means that a certain number of water molecules are included in the sol
?Epsom salts, a strong laxative used in veterinary medicine, is a hydrate, which means that a certain number of water molecules are included in the sol
Chemistry: The Central Science :
Electrochemistry
(a) What is meant by the term oxidation? (b) On which side of an oxidation half-reaction do the electrons appear? (c) What is meant by the term o
(a) What is meant by the term oxidation? (b) On which side of an oxidation half-reaction do the electrons appear? (c) What is meant by the term o
Chemistry: The Central Science :
The Chemistry of Life: Organic and Biological Chemistry
?The rate law for addition of \(\mathrm{Br}_{2}\) to an alkene is first order in \(\mathrm{Br}_{2}\) and first order in the alkene. Does this informati
?The rate law for addition of \(\mathrm{Br}_{2}\) to an alkene is first order in \(\mathrm{Br}_{2}\) and first order in the alkene. Does this informati
People also purchased
Related chapters
Unlock Textbook Solution
Enter your email below to unlock your verified solution to:
Until the early 1960s, the group 8A elements were called the inert gases. (a) Why was the term inert gases dropped? (b) What discovery triggered