When two atoms form a single covalent bond, two orbitals (one from each atom) overlap such that the electron pair can be in both orbitals simultaneously. Double and triple bonds involve the sharing of multiple electron pairs. Each additional electron pair requires the overlap of another set of orbitals. A set of overlapping orbitals is called a o bond (sigma bond) if the overlap is head-on and a r bond (pi bond) if the overlap is sideways. Part A How many o and T bonds are present in a molecule of cumulene? (Figure 1) Enter the number of o bonds followed by the number of T bonds separated by a comma. • View Available Hint(s) Figure 1 of 1 H `C=c=C=C `H

When two atoms form a single covalent bond, two orbitals (one from each atom) overlap such that the electron pair can be in both orbitals simultaneously. Double and triple bonds involve the sharing of multiple electron pairs. Each additional electron pair requires the overlap of another set of orbitals. A set of overlapping orbitals is called a o bond (sigma bond) if the overlap is head-on and a r bond (pi bond) if the overlap is sideways. Part A How many o and T bonds are present in a molecule of cumulene? (Figure 1) Enter the number of o bonds followed by the number of T bonds separated by a comma. • View Available Hint(s) Figure 1 of 1 H `C=c=C=C `H

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter3: Atomic Shells And Classical Models Of Chemical Bonding

Section: Chapter Questions

Problem 67P

See similar textbooks

Similar questions

Estimate the percent ionic character of the bond in each of the following species. All the species are unstable or reactive under ordinary laboratory conditions, but they can be observed in interstellar space.
Mixing SbCl3 and GaCl3 in a 1:1 molar ratio (using liquid sulfur dioxide as a solvent) gives a solid ionic compound of empirical formula GaSbCl6 . A controversy arises over whether this compound is (SbCl2+)(GaCl4) or (GaCl2+)(SbCl4) . (a) Predict the molecular structures of the two anions. (b) It is learned that the cation in the compound has a bent structure. Based on this fact, which formulation is more likely to be correct?
A stable triatomic molecule can be formed that contains one atom each of nitrogen, sulfur, and fluorine. Three bonding structures are possible, depending on which is the central atom: NSF, SNF, and SFN. (a) Write a Lewis diagram for each of these molecules, indicating the formal charge on each atom. (b) Often, the structure with the least separation of formal charge is the most stable. Is this statement consistent with the observed structure for this molecule—namely, NSF, which has a central sulfur atom? (c) Does consideration of the electronegativities of N, S, and F from Figure 3.18 help rationalize this observed structure? Explain.
Use the data in Table 3.1 to plot the logarithm of ionization energy versus the number of electrons removed for Be. Describe the electronic structure of the Be atom.
The four bonds of carbon tetrachloride (CCl4) are polar, butthe molecule is nonpolar because the bond polarity is canceledby the symmetric tetrahedral shape. When other atoms substitutefor some of the Cl atoms, the symmetry is broken and the mol-ecule becomes polar. Use Figure to rank the fol-lowing molecules from the least polar to the most polar: CH₂Br₂,CF₂Cl₂, CH₂F₂, CH₂Cl₂, CBr₄, CF₂Br
If given H2, CH4, CH3 CH3, NH3 and H2O in which one of the following pre dominantly covalent molecule is the departure from equal sharing of the bonding electrons greatest and why?
In consideration of the overall resonance hybrid OCN(^-), which is the proposed resonance structure that's most important? In lewis Dot Form*
Ozone (O3) has a nonzero dipole moment. In the moleculeof O3, one of the oxygen atoms is directly bonded to theother two, which are not bonded to each other.(a) Based on this information, state which of the following structures are possible for the ozone molecule:symmetric linear, nonsymmetric linear (for example,different OUO bond lengths), and bent. (Note: Evenan OUO bond can have a bond dipole if the twooxygen atoms are bonded to different atoms or if onlyone of the oxygen atoms is bonded to a third atom.)(b) Use the VSEPR theory to predict which of the structures of part (a) is observed.
Give approximate values for the indicated bond angles in thefollowing molecules:
The partial Lewis structure that follows is for a hydrocarbonmolecule. In the full Lewis structure, each carbon atomsatisfies the octet rule, and there are no unshared electronpairs in the molecule. The carbon—carbon bondsare labeled 1, 2, and 3. (a) How many hydrogen atomsare in the molecule? (b) Rank the carbon–carbonbonds in order of increasing bond length. (c) Whichcarbon—carbon bond is the strongest one?
A classmate of yours is convinced that he knows everythingabout electronegativity. (a) In the case of atoms X and Y havingdifferent electronegativities, he says, the diatomic moleculeX¬Y must be polar. Is your classmate correct? (b) Yourclassmate says that the farther the two atoms are apart in abond, the larger the dipole moment will be. Is your classmatecorrect?
Contrast the two general types of chemical bonds in terms of the mechanism by which they form. Own answer please.