Which of the following is a condition for the combination of atomic or...
Combination of Atomic Orbitals:
Combining atomic orbitals is a fundamental concept in chemistry that describes the formation of molecular orbitals from atomic orbitals during the process of chemical bonding. When two or more atomic orbitals combine, they form molecular orbitals that can accommodate electrons.
Condition for the Combination of Atomic Orbitals:
Among the given options, the correct condition for the combination of atomic orbitals is option B - "Combining atomic orbitals must have symmetry as per molecular axis." This condition is known as the Symmetry Condition.
Explanation:
When atomic orbitals combine to form molecular orbitals, they must possess the appropriate symmetry with respect to the molecular axis. This is because the molecular orbitals are formed by the overlap of the atomic orbitals along the molecular axis.
Significance of Symmetry:
The symmetry of the atomic orbitals is crucial for their overlap and subsequent formation of molecular orbitals. The overlapping atomic orbitals should have the same symmetry as the molecular axis to ensure constructive interference and effective bonding between the atoms.
Constructive Interference:
When atomic orbitals overlap with the same symmetry as the molecular axis, their wave functions align properly, leading to constructive interference. This constructive interference results in the formation of bonding molecular orbitals, which stabilize the molecule.
Destructive Interference:
On the other hand, if the atomic orbitals do not possess the appropriate symmetry, their wave functions do not align properly, leading to destructive interference. This destructive interference results in the formation of anti-bonding molecular orbitals, which destabilize the molecule.
Overall Bonding:
The combination of atomic orbitals and the resulting molecular orbitals determine the overall bonding and properties of the molecule. Therefore, the symmetry of the atomic orbitals plays a crucial role in determining the nature and strength of the chemical bond.
Conclusion:
In conclusion, the condition for the combination of atomic orbitals is that they must have symmetry as per the molecular axis. This symmetry condition ensures the proper overlap and constructive interference between the atomic orbitals, leading to the formation of bonding molecular orbitals and the stabilization of the molecule.
Which of the following is a condition for the combination of atomic or...
Combining atomic orbitals must have symmetry as per molecular axis is true. The corrected statements are combining atomic orbitals must have equal energy, must overlap to the maximum extent and Z-axis should be taken as the molecular axis.