Answer: Although both carbon and silicon are in Group 4A,
Chapter 10, Problem 10.74(choose chapter or problem)
Although both carbon and silicon are in Group 4A, very few SiSi bonds are known. Account for the instability of silicon-to-silicon double bonds in general. (Hint: Compare the atomic radii of C and Si in Figure 8.5. What effect would the larger size have on pi bond formation?)
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