div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentperiod-lithium-23-na-sodium-11-potassium-rubidium-37-caesium-223-francium-87-berylliumhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: · Period Lithium 23 Na Sodium 11 Potassium Rubidium 37 Caesium 223 Francium 87 Beryllium 24 Mg Magnesium 12 Calcium Strontium Barium 226 Radium loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsinreader030viewer20220408185e63f83bf26e39182f3a0fc3html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentperiod-lithium-23-na-sodium-11-potassium-rubidium-37-caesium-223-francium-87-berylliumhtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: · Period Lithium 23 Na Sodium 11 Potassium Rubidium 37 Caesium 223 Francium 87 Beryllium 24 Mg Magnesium 12 Calcium Strontium Barium 226 Radium loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsinreader030viewer20220408185e63f83bf26e39182f3a0fc3html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentperiod-lithium-23-na-sodium-11-potassium-rubidium-37-caesium-223-francium-87-berylliumhtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: · Period Lithium 23 Na Sodium 11 Potassium Rubidium 37 Caesium 223 Francium 87 Beryllium 24 Mg Magnesium 12 Calcium Strontium Barium 226 Radium loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader030fdocumentsinreader030viewer20220408185e63f83bf26e39182f3a0fc3html5thumbnails3jpg width=140 height=200 divdivdiv...