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Is C2 (+4) paramagnetic or diamagnetic

Is C2 (+4) paramagnetic or diamagnetic

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Answer #1

σ and σ* orbital can have maximum of 2 electrons

π and π* orbital can have maximum of 4 electrons

1 C atom have 6 electrons

Here, number of C is 2

so, total number of electrons in C2 is 12

Since charge is +4

Total number of electron = 8

So, total number of electrons to fill is 8

order of filling of orbitals is:

σ1s σ*1s σ2s σ*2s π2p σ2p π*2p σ*2p

Lets fill the orbital

the filled orbital is σ1s2 σ*1s2 σ2s2 σ*2s2

The orbital σ*2s2 has no unpaired electrons

So, it is diamagnetic in nature

Answer: diamagnetic

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