Distinguish between the terms electronegativity and electron affinity, covalent bond and ionic bond, and pure covalent bond and polar covalent bond. Characterize the types of bonds in terms of electronegativity difference. Energetically, why do ionic and covalent bonds form?
Answer to relevant QuestionsThe following electrostatic potential diagrams represent H2, HCl, or NaCl. Label each, and explain your choices. Repeat Exercises 15 and 16. This time use the values of the electronegativities of the elements given in Fig.. Are there any differences among your answers? Figure Consider the ions Sc3+, Cl-, K+, Ca2+, and S2-. Match these ions to the following pictures that represent the relative sizes of the ions. Which compound in each of the following pairs of ionic substances has the most exothermic lattice energy? Jus-tify your answers. a. LiF, CsF b. NaBr, NaI c. BaCl2, BaO d. Na2SO4, CaSO4 e. KF, K2O f. Li2O, Na2S Rationalize the following lattice energy values:
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