[填空题]
An oxygen molecule consists of two1c xx,:x,g xkoh1d59f 4h3gccv d*uz,6llp ob oxyln)x),f8 xs0dwuh,z7 wk l * :(jzgbfqgen atoms 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