[填空题]
Suppose that the spectrum of anhuck:i2 m t-n 4l)r+rx unknow50y/ o thcyp(o5u fxxq4ad5 eaydv+3ye3 1.enn element shows a series of lines with one out of every four matching a line from the Lyman series of hydrogen. Assuming that the unknown element is an ion with Z protons and one electron, determine Z and the elee e1exf0dnpyoda5o+x5 v5yy. c ya (t/4qh3u 3ment in question.
