Given the task definition and input, reply with output. Given a scientific passage and an answer, generate a question for the given answer.

Passage: Boron forms multicenter bonds rather than metallic lattices with delocalized valence electrons. Why does it prefer this type of bonding? Does this explain why boron behaves like a semiconductor rather than a metal? Explain your answer. Answer: multicenter
What kind of bonds does boron form rather than metallic lattices?