[填空题]
The angular momentum 10 in the hydrogen atom is z b0 f 5(xug)oj/xt:fygb7;1dylv g3f vjdp65u4 uex 5given both by the Bohr model and by quantum mechanics. Compare the resulu4gx56yd;73fud5vl1e g j vpb ts for $L = mvr$.
or $L_{\text{QM}}$ = $\hbar$. asdfasdofadsf