Chapter 9: Problem 9
Name one ionic compound that contains only nonmetallic elements.
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Chapter 9: Problem 9
Name one ionic compound that contains only nonmetallic elements.
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A rule for drawing plausible Lewis structures is that the central atom is invariably less electronegative than the surrounding atoms. Explain why this is so.
Of the noble gases, only \(\mathrm{Kr}, \mathrm{Xe},\) and \(\mathrm{Rn}\) are known to form a few compounds with \(\mathrm{O}\) and/or \(\mathrm{F}\). Write Lewis structures for these molecules: (a) \(\mathrm{XeF}_{2},\) (b) \(\mathrm{XeF}_{4}\) (c) \(\mathrm{XeF}_{6},\) (d) \(\mathrm{XeOF}_{4},\) (e) \(\mathrm{XeO}_{2} \mathrm{~F}_{2}\). In each case Xe is the central atom.
For each of the following pairs of elements, state whether the binary compound they form is likely to be ionic or covalent. Write the empirical formula and name of the compound: (a) I and \(\mathrm{Cl}\), (b) \(\mathrm{Mg}\) and \(\mathrm{F}\).
Give three examples of compounds that do not satisfy the octet rule. Write a Lewis structure for each.
Write three resonance structures for the isocyanate ion (CNO \(^{-}\) ). Rank them in importance.
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