| 2 Regions of High Electron Density Linear Arrangement |
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| types of regions | distribution of regions of high electron density | model |
| 2 bonding regions 0 lone pairs linear BeCl2 |  | |
| 3 Regions of High Electron Density Trigonal Planar Arrangement |
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| types of regions | distribution of regions of high electron density | model |
| 3 bonding regions 0 lone pairs trigonal planar BF3 |  | |
| 2 bonding regions 1 lone pair bent NO2- |  | |
| 4 Regions of High Electron Density Tetrahedral Arrangement |
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| types of regions | distribution of regions of high electron density | model |
| 4 bonding regions 0 lone pairs tetrahedral NH4+ |  | |
| 3 bonding regions 1 lone pair trigonal pyramidal NH3 |  | |
| 2 bonding regions 2 lone pairs bent NH2- |  | |
| 5 Regions of High Electron Density Trigonal Bipyramidal Arrangement |
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| types of regions | distribution of regions of high electron density | model |
| 5 bonding regions 0 lone pairs trigonal bipyramidal PF5 |  | |
| 4 bonding regions 1 lone pair seesaw SF4 |  | |
| 3 bonding regions 2 lone pairs T-shaped ICl3 |  | |
| 2 bonding regions 3 lone pairs linear I3- |  | |
| 6 Regions of High Electron Density Octahedral Arrangement |
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| types of regions | distribution of regions of high electron density | model |
| 6 bonding regions 0 lone pairs octahedral IF6+ |  | |
| 5 bonding regions 1 lone pair square pyramidal IF5 |  | |
| 4 bonding regions 2 lone pairs square planar ICl4- |  | |
