[填空题]
The angular momentum 10 in the hydrogen atom is given both by th,zq:sgt: r lzt745k ede Bohrtel 5)8 jjkb8 abws,i42ypic3v+b3 si model and by quaniw)ts eljb,k 5vb8iayjcs3pi8 324+ btum mechanics. Compare the results for $L = mvr$.
or $L_{\text{QM}}$ = $\hbar$. asdfasdofadsf