Dmitri mendeleev published the first periodic table in 1869 he showed that when the elements were ordered according to atomic weight a pattern resulted where similar properties for elements recurred periodicallybased on the work of physicist henry moseley the periodic table was reorganized on the basis of increasing atomic number rather than on atomic weight. Introducing the periodic table 1 what is the periodic table it is a chart that organizes the elements by their increasing atomic numbers as well as by their physical and chemical properties 2 who made the periodic table and when was it created state of matter properties examples of elements metals malleable electrically conductive . Chemistry introduction to the periodic table the periodic table is the most powerful tool chemists have for organizing chemical information without it chemistry would be a chaotic confusing . Answers to chemistry problems quiz the periodic table discovery and similarity quiz discovery and similarity atomic masses quiz atomic masses the periodic table quiz the periodic table introduction to states of matter solids liquids and gases boyles law . Introduction video on the periodic table being explained to chemistry school science students chemistry class 10th chapter 5 periodic classification of elements module 3 modern periodic
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