In: Chemistry
which of the following is not one of the conditions of the valence bond theory that results in a covalent bond.
A) covalent bonds form the overlap of atomic
orbitals
B) the 2 overlapping lobes of the orbitals must be opposite
phase
C) the greater the amount of orbital overlap, the stronger the
bond
D) Each of the bonded atoms maintains it's own atomic
orbital
The correct answer is option (B).
According to Valence Bond Theory, a covalent bond is formed from the positive overlap of two atomic orbitals.
A positive overlap results when two lobes of the same phase (both positive or both negative) overlap.
An overlap between two lobes of the opposite phase is a negative overlap and does not result in bond formation.