Having 3 sigma bonds in a similar manner to CH3 free radical it should also have hybridisation sp2. However, if we look at its shape, it is pyramidal and not planar unlike CH3 free radical(which is sp2 hybridised) which signifies that it should have sp3 hybridisation. But how is this possible because the 3 sigma bonds will bond with 3 hybrid orbitals, from where did the third p orbital came?
If its hybridisation is sp3, then why is it?
Thank you for answering the question