The structure of BHio molecule B:sp3 hybridization Note:a B-B bond 119pm H 143pm 13 H H 110pm B (a)） (b) The structure of B4H10 molecule 119pm 110pm 137pm 143pm 122。 171pm H B ( b ) B B B B H H H H H H H H H H H ( a ) B: sp3 hybridization Note: a B-B bond