Which of the following species is diamagnetic ?

Question

Infinity Learn · Accepted Answer

$$N2-KK$$'σ$$2s2$$σ$$2s*2$$$$π$$$$2px2$$$$π$$$$2py2$$σ$$2pz2$$ ; $$N2+-KK$$'σ$$2s2$$σ$$2s*2$$$$π$$$$2px2$$$$π$$$$2py2$$σ$$2pz1$$ ; $$N2--KK$$'σ$$2s2$$σ$$2s*2$$$$π$$$$2px2$$$$π$$$$2py2$$σ$$2pz2$$$$π$$$$2p*1$$ ; $$N22--KK$$'σ$$2s2$$σ$$2s*2$$$$π$$$$2px2$$$$π$$$$2py2$$σ$$2pz2$$$$π$$$$2px*1$$$$π$$$$2py*1$$ ;Bond order and magnetic moment :   μ$$s=nn+2$$ B. M ; $$N2-2=10-62=2$$;   Paramagnetic...μ$$s=2.82$$ B.M ; $$N2-=10-52=2.5$$; Paramagnetic...μ$$s=1.732$$ B.M ; $$N2=10-42=3$$;    Diamagnetic.....μ$$s=0$$ ; $$N2+=9-42=2.5$$;  Paramagnetic..μ$$s=1.732B$$.M  ;Bond order ∝ $$1Bond$$ lengthStability ∝Bond order;$$Stability-----$$ $$N23$$ >$$N2+$$ $$2.5$$>$$N2-$$ $$2.5$$>$$N22-2$$ ;Higher stability of $$N2+$$ over $$N2-$$ is due to lesser number of ABMO electrons in $$N2+$$.

Which of the following species is diamagnetic ?

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