Tetrahedral geometry is obtained when the central atom is bonded with four atoms.
Tetrahedral literally means "having four faces" because the prefix tetra- specifies four and the suffix -hedral denotes a face of a solid. This shape develops when there are no lone electron pairs and four bonds are all on the same core atom. According to the VSEPR theory, the bond angles between the electron bonds are 109.5°.
Tetrahedral molecules include methane (CH4) as one example. The four comparable bonds in three dimensions correspond to the four corners of a tetrahedron centered on the carbon atom, and they point in the same four geometric directions. Compounds with this molecular shape will have the formula AX4.
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