Which orbital is non directional?
They are non directional because they are spherical in shape and probability of finding electrons at a particular distance from the nucleus is same in all directions.
What is bond length ? Explain factors affecting bond length.
Bond length is defined as the average distance between the nuclei of two bonded atoms in a molecule.
Bolnd length depends upon the Electronegativity difference of combining atoms, Atomic size of combining atoms, Nature of Hybridization and Type of bond.