[填空题]
An oxygen molecule consists of nc;prv6c.-xph7o7bw( 0 nj7w 2vaz wrtwo oxygen ac6fifj-l6/ govb6 hzk82a 0patoms whose total mass is $5.3 \times10^{ -26}$ kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is $ 1.9\times10^{-46 }$ $kg \cdot m^2$ From these data, estimate the effective distance between the atoms. $\times10^{-10 }$ m