The periodic table of elements, as every scientist will know, was arranged by the Russian Dmitri Mendeljev. This periodic table consists of chemical elements which are ordered; starting from the top left; with increasing atom mass and in addition the elements with the same chemical properties are placed together. This arrangement of the table of Mendeljev came to a stand because Mendeljev had written on a set of cards the chemical elements; the ones he knew, because not all atoms were yet discovered; with their important physical and chemical properties. He started to organise these cards and after three days and three nights he made a connection between the elements and his favourite card game patience; he played this game on long rail journeys. The aim of patience is ordering the cards in an increasing series, from ace to king and per colour. So what Mendeljev was looking for seemed to have the same pattern as his favourite card game, only in his table the elements were ordered according to their properties and with increasing atom mass.
Clear single focus and accurate text. Occasionally some wording is a bit less expected: 'come to a stand' + Dutch word order: had written on a card the... which should be: had written the... on a card.... Good job. ODP
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