Question

VSEPR GEOMETRIES

VSEPR Geometries 2 lone pairs Steric No. Basic Geometry O lone pair 1 lone pair 4 lone pair's 3 lone pairs 180° Linear <120 Bent or Angular Planar X Tetrahedral << 109° Beat or Angular <109° Trigonal Pyramid < 90° X XI <120° CE- 120°CX Trigonal Bipyramid Sawbore or Seesaw 190° Wa 2 T 90° * T-shape tabedral Square Pyramid Square Planar

Answer 1

SIMPLEST TRICK TO DETERMINE THE GEOMETRY AND SHAPE TO FIND GEOMETRY AND SHAPE

1. Calculate the valence electron

2. if valence electron count is less than or equal to 8 divides it by 2

if valence electron count is less than or equal to 56 divides it by 8

if valence electron count is greater than or equal to 56 divides it by 18

3. Predict the geometry & shape by using the table given below as provided in the question

VSEPR Geometries 2 lone pairs Basic Geometry 0 lone pair 4 lone pairs 1 lone pair 3 lone pairs Steric No. 180 -х E- Linear х 120 х 120 Bent or Angular Trigonal Planar Хл 109 Хл. х х 109 <<109° Beat or Angular Trigonal Pyramid Tetrahedral 90° X Хо 120 180 90° 90 X 120 -х Trigonal Bipyramid Sawhorse or Seetaw Tshape Linear 90 Хнн 180 х, x <90° Square Pyramid Square Planar Octabedral T-аре Linear

Order of repulsion : bond pair-bond pair < bond pair-lone pair < lone pair-lone pair

Based on these factors bond angles distorts in a given structure