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When N_{2}^{+} is formed from N_{2} bond order ________ and when O_{2}^{+} is formed from O_{2}
bond order______

Option: 1

Increases, decreases


Option: 2

Decreases, increases


Option: 3

Decreases, decreases


Option: 4

Increases, increases


Answers (1)

best_answer

 

 

Electronic Configuration for Molecules -

Electronic Configuration and Molecular Behaviour

We predict the distribution of electrons in these molecular orbitals by filling the orbitals in the same way that we fill atomic orbitals, by using the Aufbau principle. Lower-energy orbitals fill first, electrons spread out among degenerate orbitals before pairing, and each orbital can hold a maximum of two electrons with opposite spins. Just as we write electron configurations for atoms, we can write the molecular electronic configuration by listing the orbitals with superscripts indicating the number of electrons present. For clarity, we place parentheses around molecular orbitals with the same energy. In this case, each orbital is at a different energy, so parentheses separate each orbital. 

 

For example, the electronic configuration of O2 molecule is given below:

Thus, the electronic configuration of O2 molecule can be written as:

σ1s2 σ*1s2 σ2s2 σ*2s2 σ2pz2 π2px2 π2py2 π*2px1 π*2py1

-

 

 

As we have learnt,

Bond- order of N_{2} is =3.0
Bond- order of N{_{2}}^{+} is =2.5
Bond- order of O_{2} is =2.0
Bond- order of O{_{2}}^{+}is =2.5

Hence, option number (2) is correct.


 

 

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Sayak

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