Is B2 paramagnetic or diamagnetic?
Answer:
The M.O. electronic configuration of B2 molecule is
B2: [KK (σ2s)2 (σ2s)2 (straight pi2px)1(straight pi2py)1]
Since each straight pi2px and straight pi2py MO contains unpaired electron, therefore B2 molecule is paramagnetic.
B2 paramagnetic or diamagnetic
Read more: Consider the reaction: Cr2O72– + 14H+ + 6e- → 2Cr3+ + 8H2O