Concept explainers
An ionic bond is formed between a cation
how would the energy of the ionic bond be affected by the following changes: (a) doubling the radius of
Want to see the full answer?
Check out a sample textbook solutionChapter 8 Solutions
EBK CHEMISTRY
- Consider the reactions of silver metal, Ag(s), with each of the halogens: fluorine, F2(g), chlorine, Cl2(g), and bromine, Br2(l). What chapter data could you use to decide which reaction is most exothermic? Which reaction is that?arrow_forwardFrom the following ions (with their radii in pm), choose the pair that forms the strongest ionic bond and the pair that forms the weakest:arrow_forwardDraw the Lewis structures for each of the following ions or molecules. Give the number of electrons in each species. Remember to enclose ion s in square brackets with the charge as a superscript outside the right bracket. (a) SO 2 (b) XeO 2 F 2 (Xe is the central atom) (c) ClF 3 (d) ClO 2 F (Cl is the central atom) (e) BrO 4 -arrow_forward
- 29. Which of the following particles has a central atom that does NOT obey the octet rule in its most stable form? (А) HCN (B) H2O (C) ВеН2 (D) PClз 30. A sample of element X contains 90% X-35, 8.0% X-37, and 2.0% X-38 atoms. The average atomic mass will be closest to which value? (A) 35 (B) 36 (C) 37 (D) 38 31. What is the molecular geometry of carbon dioxide, CO2? (A) Bent (B) Tetrahedral (C) Trigonal pyramidal (D) Lineararrow_forward39. How many grams are in 2.3 x 1024 formula units of KNO3? (A) 38.6 grams (B) 102.3 grams (C) 140 grams (D) 386 grams 40. Which statement describes the general trends in electronegativity and first ionization energy as the elements in Period 3 are considered in order from Na to Cl? (A) Electronegativity increases, and first ionization energy decreases (B) Electronegativity decreases, and first ionization energy decreases (C) Electronegativity and first ionization energy both increase (D) Electronegativity and first ionization energy both decreasearrow_forwardshow-all-working-explaining-detailly-each-step Answer should be typewritten using a computer keyboard.arrow_forward
- ative element in the group K, Mg, Al and In; (d) the element in the group Na, Be, Si, Ar, that is most likely to form an ionic compound with Br. 8.41 Which of the following bonds are polar? (a) C-O, (b) Sl–F, (c) N-CI, (d) C-Cl. Which is the more electro- negative atom in each polar bond? 8.42. Arrange the bonds in each of the following sets in or-arrow_forwardConsider the A2X4 molecule depicted here, where A and X are elements. The A – A bond length in this molecule is d1, and the four A – X bond lengths are each d2 (a) In terms od d1 and d2, how could you define the bonding atomic radii of atoms A and X? (b) In terms of d1 and d2, what would you predict for the X-X bond length of an X2 molecule?arrow_forward2. Draw the Lewis structures for each of the following ions or molecules. Give the number of electrons in each species. Remember to enclose ions in square brackets with the charge as a superscript outside the right bracket. (a) Br 20 (c) BrF 3 (e) PCI 4* (b) IOF 3 (I is the central atom) (d) ASF 3arrow_forward
- Part B The dipole moment (u) of HBr (a polar covalent molecule) is 0.844D (debye), and its percent ionic character is 12.5 % . Estimate the bond length of the H Br bond in picometers. Note that • 1D= 3.34 x 10-30 C .m and • in a bond with 100% ionic character, Q = 1.6 x 10-19 C. Express your answer to two significant figures and include the appropriate units. HA ? r= 5.3 • 1018 pmarrow_forwardQ 5. Define electronegativity. Use electronegativity (EN) values to determine whether the bonds between the following atoms are non polar covalent, polar covalent or ionic (calculations must be shown) a) C (EN = 2.55) and H (EN = 2.20) b) K (EN = 0.82) and F (EN = 3.98) c) H (EN = 2.20) and Br (EN = 2.96) d) Mg (EN = 1.31) and Cl (EN = 3.16)arrow_forwardIn the three molecules, O2, HCl, and F2, what atom would have a partial negative charge?arrow_forward
- General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning