Chemical Bond Tetrahedron Geometry

Oxygen atom has initially six electrons in the 2s and 2p orbits and then captures two more electrons from each of its B neighbors. The eight electrons fuUy occupy the 2s and 2p levels of an oxygen atom that hybridizes its sp orbits then to form four directional orbits. The eight electrons repopulate in the four directional orbitals with two electron pairs shared between O and B. The remaining two orbits are occupied by the lone electron pairs of oxygen. 

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Alkanes are hydrocarbons that contain only single covalent bonds and can be represented by the formula C H2 i2. Alkanes possess a three-dimensional geometry in which each carbon is surrounded by four bonds directed to the comers of a tetrahedron. Methane, the simplest alkane, is an important fuel (natural gas) and a chemical feedstock for the preparation of other organic compounds. The number of stmctural isomers possible for an alkane increases dramatically with the nnmber of carbon atoms present in the molecule. The straight-chain isomer is called a normal alkane others are called branched isomers. 

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