Shapes of Molecules

Shape: pyramidal
Steric Number: 4
Lone Pair: 1
Polar/NonPolar: Polar
Hybridization: sp3
Examples: NH3
GIF File: ax3e.gif (63K)
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NOTES: This molecule is made up of 4 equally spaced sp3 hybrid orbitals forming bond angles of approximately 109.5o. The shape of the orbitals is tetrahedral. One of the orbitals contains a lone pair of electrons. The three atoms connected to the central atom form a molecule with a pyramidal shape.