Physics, asked by sister18, 11 months ago

why oxygen is paramagnetic in nature by molecular orbital theory

Answers

Answered by NidhraNair
8
⭕️The electronic configuration  O-atom is :-
1s2 2s2 2p4 and the O2 molecule has total 16 electrons.

⭕️according to MO theory, all the 16 electrons will be counted during formation of MO-diagram.

✔️✔️so electronic configuration will be :-

[σ(1s)]2  [σ*(1s)]2  [σ(2s)]2  [σ*(2s)]2  [σ(2Pz)]2 [π(2Px)]2  [π(2Py)]2  [π*(2Px)]1  [π*(2Py)]1  ....

⭕️Since the core orbitals are full occupied , we will consider for the valence shell (2nd shell).

⭕️ in the antibonding shell, highest energy, the last two electrons fill singly ,because both the [π*(2Px)]1 [π*(2Py)]1 orbitals have nearly equal energy.

⭕️So, according to Hund's rule the last two electrons are filled singly.

⭕️Due to this the ,O2 molecule contains unpaired electrons, which characterizes its paramagnetic character...................
Answered by Anonymous
1
Hello Friend..❤️❤️

The answer of u r question is..✌️✌️

✔️✔️ According to HUNDS rule the last two electrons are filled singly.....In the antibodies shell highest bonding energy the last two electrons ..orbitals have near equal energy.....since the core orbitals or full occupied we will consider for the valence shell.....due to this o2 molecule contains unpaired electrons.✔️✔️

Thank you..⭐️⭐️⭐️
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