Question

the covalent bond can be explained by molecular orbital theory using molecular orbital diagram explain the paramagnetic nature of oxygen molecule​

Answer 1

Yet oxygen is paramagnetic. The correct explanation comes from Molecular Orbital theory. The atomic orbitals of the O atoms overlap to form the σ and π orbitals of the O2 molecule as shown in the diagram above. ... Thus, oxygen has two unpaired electrons and is paramagnetic.

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Answer 2

Explanation:

Yet oxygen is paramagnetic. The correct explanation comes from Molecular Orbital theory. The atomic orbitals of the O atoms overlap to form the σ and π orbitals of the O2 molecule as shown in the diagram above. ... Thus, oxygen has two unpaired electrons and is paramagnetic.

The Lewis structure of

O

2

It shows that all the electrons in oxygen are paired, so oxygen should be diamagnetic.

Yet oxygen is paramagnetic.

The correct explanation comes from Molecular Orbital theory

The atomic orbitals of the

O

atoms overlap to form the σ and π orbitals of the

O

2

molecule as shown in the diagram above.

We add the 12 valence electrons according to the Aufbau principle.

The last two electrons go into separate, degenerate π orbitals, according to Hund's Rule.

Thus, oxygen has two unpaired electrons and is paramagnetic.