Shapes of Molecules

Shapes of Molecules

1. basic facts

   • electrons arrange themselves around the central atom as far away as possible
   • lone pairs repel more than bond pairs
   • lone pairs reduce the bond angle by 2 degrees

2. 2 electron pairs

   • example-
   • no lone pairs
     • Linear

3. 3 electron pairs

   • no lone pairs
     • trigonal planar
   • example-

4. 4 electron pairs

   • no lone pairs
     • tetrahedral
   • 1 lone pair
     • trigonal pyramidal
   • 2 lone pairs
     • bent

5. 5 electron pairs

   • no lone pairs
     • trigonal bipyramidal

6. 6 electron pairs

   • no lone pairs
     • octahedral
   • 2 lone pairs
     • square planar

Images and files in the map