Question

Necular Models: Lewis Dot Formulas, VSEPR Theory, and 3. What is the electronie geometry a (a) two regions of electron density Stronie geometry about a central atom which has (b) five regions of electron density TIITTLERERE BUDUDDUBOUT 4. What is the molemme what is the molecular geometry about a central atom which has the number of elec- tron density regions and the number of attached atoms indicated below? no. of electron no, attached molecular density regions atom geometry example: bent 128

Answer 1

3.10) Electron geometry around Central atom which has two groups of electron density is Linear Geometry As per VSEPR (Valence Shell Electron Pair 1 Refuelsion Theory) . . : 2, electron density has to be arranged in linear geometry with an angle of 180 in order to minimise the repulsions eg ÇOR regions Hybridisation deirear >[03c Geometry - No. of Bond pairs = 2.7 (SP) (single Bond) =0]... 2 regions one // - , No. of lone Pair 20 - of electron I density so, Geometry of Q is linear. (b) Electron geometry around Central atom which has fove groups of electron density is Trigenal Bipopramidal eg pus S No. of single Bend fairs = 5(sped) Hybrodsetion -Trigenal Bipyramidal)

BP Band Pairs (single Bond) , LP (Lone Pair) 4. Molecular Geometry - No. of bond paina (altuched atoms) + No.of - lene pair. No. of electron density No. of attached Molowbar regans atours son geometry Example : Bent 1sp 12BP+I LP) J Example: SF (sped) Example: NH₂ 3 . Bent-see law distorted see saw 3 BP+1LP) u H (sp3, (Pyrimdal shape) - Example & Br Es (square Pyramidal) (50P + 1L0 spd Example : Xef Xa f. ( Lan) - sped Brample : Xe fu i 4B1+ 2LP svjf spade square Planar