Valence Shell Electron Pair Repulsion

NH3 Ammonia

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Sulfur Tetrafluoride

NH3 NH3 polyhedron Ammonia has 8 electrons around the central nitrogen atom. This means there are four electron pairs arranged in a tetrahedral shape. There are three bonding pairs and one lone pair. The resulting shape is a trigonal pyramid with an H-N-H angle of 106.7°.

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Related structures H2O | NH3 | CH4 | PF5 |SF4 |ClF3 | SF6 | XeF4