what is hybridization?explain the formation of Becl2 molecule using hybridisation.
Answers
Answer:
hybridisation is a phenomenon of intermixing of atomic orbitals of almost equal energy which are present in the outer shells of the atom and their reshuffling or redistribution into the same number of orbitals but with equal properties like energy and shape.
Explanation:
be has electronic configuration 1s2,2s2.it has no unpaired electrons. it is expected not to form covalent bonds,but it forms two covalent bonds one each with two chlorine atoms. to explain this,an excited state is suggested for beryllium in which an electron forms '2s' shifts to 2Px level.
if Be forms two covalent bonds with two chlorine atoms, one bond should be sigma2s-3p due to the overlap of '2s' orbital of Be, the '3Pz' orbital of one chlorine atom and the other bond should be sigma2s-3p due to the overlap of '2Px' orbital of Be atom the 3p orbital of the other chlorine atom.as the orbitals ovelapping are different, the bond strength of two Be-Cl must be different.but,both bonds are of same strength and Cl^BeCl is 180°.