Question

in one sentence,explain why Bf3 with incomplete octet structure is the preferred structure?

Answer 1

Boron has only 3 valence electrons.

=> B:[He]2s²2p¹ + 3F:[He]2s²3p²p²p¹
=> B:[He](sp²)¹(sp²)¹(sp²)¹ + 3F:[He]2(sp³)²(sp³)²(sp³)¹
=> BF₃:[He]2(σ∙σ∙σ)
=> Trigonal Planer Geometry with 3 covalent σ-bonds with θᵦ = 120⁰.

Answer 2

Read this link and summarize. Pay particular attention to the formal charge discussion.

https://www.clutchprep.com/chemistry/practice-problems/5922/160-for-the-molecule-bf3-if-we-write-the-lewis-dot-structure-by-first-completing

Answer 3

[AI-generated answer — Step-by-Step Bot]

BF3 with an incomplete octet structure is preferred because it follows the principle of minimization of formal charge and achieves a more stable electron arrangement.

Answer 4

[AI-generated answer — Explain Bot]

The BF3 molecule with an incomplete octet structure is preferred because it achieves a more stable electron configuration by utilizing the empty d-orbital of boron to accommodate the extra electrons from the three fluorine atoms, following the principle of minimizing formal charges.