What I Can Do Covalent and ionic compounds can be differentiated easily because of their different physical properties based on the nature of their bonding. Fill-in the blank whether it is covalent or ionic compound based on tha properties: When (1)nic Gompound with just a single positive ion andla single negative ion. The process of gaining and losing electrons completely changes the chemica properties of a substance. The chemical and physical properties of an (2) Joni ompound will bear no resemblance to the properties of the elements which formed the ions. Some elements, however, can achieve an octet in a different way by sharing heir 3). 4). Hectrons, are unable to achieve an octet by electron sharing. are formed, we are almost never dealing with Typically, only non-metals are able to forr Metals, with their low numbers of valeno valence electrons other atoms and this is called

What I Can Do Covalent and ionic compounds can be differentiated easily because of their different physical properties based on the nature of their bonding. Fill-in the blank whether it is covalent or ionic compound based on tha properties: When (1)nic Gompound with just a single positive ion andla single negative ion. The process of gaining and losing electrons completely changes the chemica properties of a substance. The chemical and physical properties of an (2) Joni ompound will bear no resemblance to the properties of the elements which formed the ions. Some elements, however, can achieve an octet in a different way by sharing heir 3). 4). Hectrons, are unable to achieve an octet by electron sharing. are formed, we are almost never dealing with Typically, only non-metals are able to forr Metals, with their low numbers of valeno valence electrons other atoms and this is called

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 86AP

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The percent ionic character of a bond can be approximated by the formula 16+3.52 , where is the magnitude of the difference in the electronegativities of the atoms (see Fig. 3.18). Calculate the percent ionic character of HF, HCl, HBr, HI, and CsF, and compare the results with those in Table 3.7.
What is meant by a chemical bond? Why do atoms form bonds with each other? Why do some elements exist as molecules in nature instead of as free atoms?
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?
Atoms form ions so as to achieve electron configurations similar to those of the noble gases. For the following pairs of noble gas configurations, give the formulas of two simple ionic compounds that would have comparable electron configurations. msp;a.[He]and[Ne]c.[He]and[Ar]b.[Ne]and[Ne]d.[Ne]and[Ar]
Which of the following statements is false concerning bonding? Elements with extremely different electronegativities tend to form ionic bonds with each other. In an N—O bond. electron density is greater near the O atom. An N—O bond is an example of a polar covalent band. In general, chemical bonds form to minimize energy. The bond in KBr is formed by sharing electrons.
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.
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.
(a) Use the VSEPR theory to predict the structure of the NNO molecule. (b) The substance NNO has a small dipole moment. Which end of the molecule is more likely to be the positive end, based only on electronegativity?
Distinguish between the terms electronegativity versus electron affinity, covalent bond versus ionic bond, and pure covalent bond versus polar covalent bond. Characterize the types of bonds in terms of electronegativity difference. Energetically, why do ionic and covalcnt bonds form?
7.50 Chemical species are said to be isoelectronic if they have the same Lewis structure (regardless of charge). Consider these ions and write a Lewis structure for a neutral molecule that is isoelectronic with each of them, (a) CN , (b) NH4+ . (c) CO32
Acrylonitrile is the building block of the synthetic fiber Orlon. Acrylonitrile Which carbon-carbon bond is shorter? Which carbon-carbon bond is stronger? Which bond is the most polar? What is the partial negative end of that bond?