Question
In which of the following does the central atom obey the octet rule: $\mathrm{NO}_{2}, \mathrm{SF}_{4}, \mathrm{NH}_{3}, \mathrm{SO}_{3}, \mathrm{ClO}_{2},$ and$\mathrm{ClO}_{2}^{-} ?$ Are any of these species odd-electron molecules or ions?
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In which of the following does the central atom obey the octet rule: $\mathrm{NO}_{2}, \mathrm{SF}_{4}, \mathrm{NH}_{3}, \mathrm{SO}_{3}, \mathrm{O}_{2}^{-}$ ? Are any of these species odd-electron molecules or ions?
Which of the following have Lewis structures that $d o$ not obey the octet rule: $\mathrm{NF}_{3}, \mathrm{AlCl}_{3}, \mathrm{SiF}_{6}^{2-}, \mathrm{SO}_{3}, \mathrm{PH}_{4}^{+}$ $\mathrm{PO}_{4}^{3-}, \mathrm{ClO}_{2} ?$
Draw the dominant Lewis structures for these chlorineoxygen molecules/ions: $\mathrm{ClO}, \mathrm{ClO}^{-}, \mathrm{ClO}_{2}^{-}, \mathrm{ClO}_{3}^{-}, \mathrm{ClO}_{4}^{-}$. Which of these do not obey the octet rule?
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