For the molecule cyanazine, the hybridization of atom 1 would be a sp³ hybridization when lone pairs are added.
Hybridization is a phenomenon in chemistry which involves the linear combination of two (2) or more atomic orbitals of a molecule or chemical compound, in order to form the same number of hybrid orbitals, with each of the orbital having equal amount of energy and the same shape.
Since nitrogen (N) in cyanazine is bonded with three (3) single bonds, two carbon (C) and one hydrogen (H) bond, we can deduce that the hybridization of atom 1 would have a sp³ hybridization.
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