Chemistry Chemical Bonding and Molecular Structure

BCl₃ is having bond angles of

Bond angles give some idea regarding the distribution of orbitals around the central atom in a molecule/complex ion and hence it helps us in determining its shape

PF₅, PCl₅, PBr₅, Fe (CO)₅ Þ Trigonal bipyramidal

BrF₅ Þ Square pyramidal

[PtCl₄]^2– Þ Square planar

SF₆ Þ Octahedral

Polarisation power µ $\frac{Charge}{Size}$ for K⁺, polarising power is least and ionic character is maximum.

BF₃ : sp² hybridised ->trigonal planar

For  overlap, the lobes of the atomic orbitals are perpendicular to the line joining the nuclei.

Kindly go through the solution

B₂ ->s1s² s*1s² s2s² s*2s² p2p¹= p2p¹

Correct order of covalent character is

NaI > NaBr > NaCl > NaF

NH⁺₄does not have vacant orbitals, therefore it cannot behave as electrophile.

Kindly consider the following figure