SUMMARY
The species with exactly five pairs of electrons around the central atom is SF4. This conclusion is reached by counting the valence electrons: sulfur contributes 6 electrons, while each of the four fluorine atoms contributes 1 electron, totaling 10 electrons or 5 pairs. The other options, ClF5, SF5–, and XeF4, do not meet the criteria as they either exceed or do not reach five pairs of electrons. Understanding the electron pair geometry is crucial for identifying such molecular structures.
PREREQUISITES
- Valence shell electron pair repulsion (VSEPR) theory
- Basic knowledge of molecular geometry
- Understanding of valence electrons and their contribution to bonding
- Familiarity with the concept of d-orbitals in molecular structures
NEXT STEPS
- Study VSEPR theory in detail to understand molecular shapes
- Learn about the role of d-orbitals in hybridization
- Explore the electron counting method for various molecular species
- Investigate the geometries of other molecules with expanded octets
USEFUL FOR
Chemistry students, educators, and professionals involved in molecular modeling or structural chemistry will benefit from this discussion.