Ethene, C 2 H 4. The simple view of the bonding in ethene. At a simple level, you will have drawn ethene showing two bonds between the carbon atoms. Each line in this diagram represents one pair of shared electrons. The atomic number of nitrogen is 7; hence, its electronic configuration is 1s22s22px12py12pz1. The four orbitals (one 2s and three 2p) undergo sp3 hybridisation forming four sp3 hybridised orbitals out of which one contains a lone pair and three contain one electron each and form three N-H sigma bonds.
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