Arkansas State University Department of Chemistry and Physics

For each molecule on the worksheet, the Lewis Dot Structure, the number of valence electrons, the electron arrangement (E.A.) and the molecular geometry (M.G.) are given, respectively.  To see a larger view of the Lewis Dot Structure, point at the molecule, right click on the mouse and go to 'View image'.  Click on the rotating molecule for summary of geometries.
 
 

PF5	40 electrons tbp tbp	CS2	16 electrons linear linear	BrO3-	26 electrons Td trigonal pyr.
NH4+	8 electrons Td Td	SCl4	34 electrons tbp see-saw	BrF5	42 electrons Oh square pyr.
BF3	24 electrons trigonal planar trigonal planar	SCl6	48 electrons Oh Oh	PH3	8 electrons Td trigonal pyr.
NF3	26 electrons Td trigonal pyr.	SO42-	32 electrons Td Td	CO32-	24 electrons trigonal planar trigonal planar
SiCl4	32 electrons Td Td	ClO3-	26 electrons Td trigonal pyr.	CH2O	12 electrons trigonal planar trigonal planar
NO3-	24 electrons trigonal planar trigonal planar	O3	18 electrons trigonal planar bent	CCl4	32 electrons Td Td
AlH3	6 electrons trigonal planar trigonal planar	SO2	18 electrons trigonal planar bent	SO3	24 electrons trigonal planar trigonal planar
CO	10 electrons linear linear	CHCl3	26 electrons Td Td	BrF3	28 electrons tbp T-shaped
H2S	8 electrons Td bent	I3-	22 electrons tbp linear	H3O+	8 electrons Td trigonal pyr.