# Can ionic and covalent bond be explained in terms of orbitals?

Covalent bonding is stated as overlap of atomic orbitals .In ionic bonding the composite ions are held together by their electrostatic charges that result from the transfer of electrons from one atom to the other. What is exactly meant by "transfer" in terms of orbitals?

• A plot of the expectation value for the electron's wave function would be heavily biased towards one of the two atoms, resulting in a net dipole moment. Apr 1 '16 at 13:49
• For the ionic form of $\ce{AB}$ viz. $\ce{A^+B^-},$ the wavefunction can be written as $\psi_{\ce{A^+B^-}}(1,2)= \psi_{\ce{B}}(1)\psi_{\ce{B}}(2)\;.$
– user5764
Apr 1 '16 at 17:24