Paramagnetic

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KarenaKaing_1D
Posts: 37
Joined: Fri Sep 25, 2015 3:00 am

Paramagnetic

Postby KarenaKaing_1D » Sat Oct 31, 2015 11:20 am

Can someone explain 4.63, which asks if they are paramagnetic, how many unpaired electrons does it possess? How does B2- have only one unpaired electron?

Alina Avetisyan 1B
Posts: 25
Joined: Fri Sep 25, 2015 3:00 am

Re: Paramagnetic

Postby Alina Avetisyan 1B » Sat Oct 31, 2015 2:33 pm

B2- has 7 valence electrons. It has 2 electrons in the sigma 2s bonding orbital, 2 electrons in the sigma 2s antibonding orbital, 2 electrons in the pi 2px bonding orbital and 1 electron in the pi 2py bonding orbital (this is the unpaired electron).


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