[填空题]
The angular momentum 10 in the hydrogen atom is giocpnokg(8zqt2 zb/9rm-1d 6m +d8 q7bw;:7h,i 7jxq wny)5ai i/iv2g hhyty tven both by the Bohr model and by quani2qt/a 7d5bj : xhiqy7y,7 tg+ynwwhi; )v8ihtum mechanics. Compare the results for $L = mvr$.
or $L_{\text{QM}}$ = $\hbar$. asdfasdofadsf