Question

Indicate the electron pair geometry and the molecular geometry for each of the six compounds listed below by completing the following table.

Answer 1

a) Tetrahedral: In a tetrahedral molecular geometry, a central atom is located at the center with four substituents that are located at the corners of a tetrahedron. ex: sicl4(silicon tetrachloride).

b)linear: the linear molecular geometry describes the geometry around a central atom bonded to two other atoms (or ligands) placed at a bond-angle of 180°. ex: Becl2 (berylium chloride)

OF2 electron pair geometry is linear but molecular geometry is bent structure.

c) Trigonal planar : trigonal planar is a molecular geometryl with one atom at the center and three atoms at the corners of an equilateral triangle, called peripheral atoms all in one plane.

Trigonal planar is a molecular shape that results when there are three bonds and no lone pairs around the central atom in the molecule. The pairs are arranged along the central atom's equator, with 120° angles between them.

ex: PF3(phosphorus trifluoride) & BF3 (boron trifluoride)

d)Bent :"bent" can be applied to certain molecules to describe their molecular geometry. will almost always set their two (or more) covalent bonds in non-collinear directions due to their electron configuration.

ex: O3 (ozone) & OF2 ( oxygen difluoride) molecular geometry is bent but electron pair is trigonal planar and linear.

e) Trigonal pyramidal:

Trigonal pyramidal is a molecular shape that results when there are three bonds and one lone pair on the central atom in the molecule . Molecules with an tetrahedral electron pair geometries have sp³ hybridization at the central atom. ex: phosphorus pentafluoride (PF₅), and phosphorus pentachloride (PCl₅)