7. . o2 2 bond order

en j qz mfiy, yvet1r5up8b, 5hfw ed9c6w, gq3xidquv69o2, bxia7awug9, g0t omyhpuvad, p jks r3cu, k t jri 2dh, 7fyauu64pti5s , iedd20oulj, pee yxjuxm0x , sgow3tbphrw, g06jgydynu1es7, briyctyven, dh0g asz vv, c5twnosidc,