The words contained in this file might help you see if this file matches what you are looking for:
...Chemistry a proposal of new version for the periodic table elements ramdane ouahes summary in spite its usefulness present shows serious defects from didactic point view through analysis periodicity phys ical properties and especially recent data concerning electron affinity cleanly that best element ending each period should be an alkaline earth metal thus chart is built it consists eight periods separates four blocks provides satisfactory pic ture configurations key word introduction among variety formats d block f main groups long or expanded form now widely used displays are displayed two separate regions clearly seven sixteen sub difficult to explain specifity first starts up with whereas other can grouped by pairs con exception one which hydro taining p where integer gen remains single yet contents obey relation justification this format was periodical ship takes value chemical behavior valence i ele last observation perhaps most ments then increases rightwards justifications obj...