Electron and Molecular Geometries
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20151123 17:00
Section 1
Question  Answer 
What is electron geometry of 5 electron groups?  trigonal bipyramidal 90,120 
What is molecular geometry of 5 electron groups, 5 bonding groups, and 0 lone pairs?  trigonal bipyramidal 90,120 
What is molecular geometry of 5 electron groups, 4 bonding groups, and 1 lone pair?  seesaw <90, <120 
What is molecular geometry of 5 electron groups, 3 bonding groups, and 2 lone pairs?  tshaped <90 
What is molecular geometry of 5 electron groups, 2 bonding groups, and 3 lone pairs?  linear 180 
 memorize 
Section 2
Question  Answer 
What is electron geometry of 3 electron groups?  trigonal planar 120 
What is molecular geometry of 3 electron groups, 3 bonding groups and 0 lone pairs?  trigonal planar 120 
What is molecular geometry of 3 electron groups, 2 bonding groups, and 1 lone pair?  bent <120 
 memorize 
Section 3
Question  Answer 
What is electron geometry of 4 electron groups?  tetrahedral 109.5 
What is molecular geometry of 4 electron groups, 4 bonding groups, and 0 lone pairs?  tetrahedral 109.5 
What is molecular geometry of 4 electron groups, 3 bonding groups, and 1 lone pair?  trigonal pyramidal <109.5 
What is molecular geometry of 4 electron groups, 2 bonding groups, and 2 lone pairs?  bent <109.5 
 memorize 
Section 4
Question  Answer 
What is electron geometry of 2 electron groups?  linear 180 
What is molecular geometry of 2 electron groups, 2 bonding groups, 0 lone pairs  linear 180 
 memorize 
Section 5
Question  Answer 
What is electron geometry of 6 electron groups?  octahedral 90 
What is molecular geometry of 6 electron groups, 6 bonding groups, and 0 lone pairs?  octahedral 90 
What is molecular geometry of 6 electron groups, 5 bonding groups, and 1 lone pair?  square pyramidal <90 
What is molecular geometry of 6 electron groups, 4 bonding groups, and 2 lone pairs?  square planar 90 
 memorize 
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