[问答题]
Excited hydrogen and excited heliud-t.0 st ;6s mtvcf)wkm atoms both radiatecofd(. + j9ebrt t vdbe160diyes0)m3 light as they jump down tod0 +efb)( 0 e .dyrdivjmtotc es36b19 the $n=1, l=0, m_l=0$ state. Yet the two elements have very different emission spectra. Why?
