div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader039fdocumentsnetreader039viewer20220315035c7b69bb09d3f26c268bf9c0html5page1jpg target=_blank img data-url=documentjohnsoneducationjuniorlabbalmersciam-simply-the-hydrogen-alpha-or-el-alphahtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: · simply the hydrogen-alpha or El-alpha line In 1889 Johannes Rydberg discovered that the line spectra of many elements most notably those Of the alkali metals loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader039fdocumentsnetreader039viewer20220315035c7b69bb09d3f26c268bf9c0html5thumbnails1jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader039fdocumentsnetreader039viewer20220315035c7b69bb09d3f26c268bf9c0html5page2jpg target=_blank img data-url=documentjohnsoneducationjuniorlabbalmersciam-simply-the-hydrogen-alpha-or-el-alphahtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: · simply the hydrogen-alpha or El-alpha line In 1889 Johannes Rydberg discovered that the line spectra of many elements most notably those Of the alkali metals loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader039fdocumentsnetreader039viewer20220315035c7b69bb09d3f26c268bf9c0html5thumbnails2jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imagea href=https:reader039fdocumentsnetreader039viewer20220315035c7b69bb09d3f26c268bf9c0html5page3jpg target=_blank img data-url=documentjohnsoneducationjuniorlabbalmersciam-simply-the-hydrogen-alpha-or-el-alphahtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: · simply the hydrogen-alpha or El-alpha line In 1889 Johannes Rydberg...