u4 - Chemistry Unit 4: The Periodic Table and Periodicity...

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Unit 4: The Periodic Table and Periodicity Chemistry Outline PowerPoint Presentation by Mr. John Bergmann
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The Elements elements known to the ancients… Element names come from a variety of sources. place names… famous people… foreign languages… mythology-related names… names related to element properties… S, Cu C, Sn, Fr, Po, Ge, Ga, Eu, Am, Cf, Sc Es, Fm, Md, No, Lr, Rf, Bh Xe Hg, Ta, Ti, Pd Pm, Th, W, Fe, Au, Ag, Pb, Sn, Cu
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atomic number Background on the Periodic Table Dmitri Mendeleev : given credit for Periodic Table (~1870) -- -- organized Table by increasing atomic mass left spaces and predicted properties of undiscovered elements Henry Moseley : put elements in order of increasing ____________. Mendeleev Moseley
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Describing the Periodic Table periodic law : the properties of elements repeat every so often period : group (family) : horizontal row; there are 7 vertical column; there are 18 18 17 16 15 14 13 12 9 10 11 8 7 6 5 4 1 3 2 1 2 3 4 6 7 5
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Regions of the Table metals : left side of Table; form cations properties: lustrous (shiny) ductile (can pull into wire) malleable (can hammer into shape) good conductors (heat and electricity)
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u4 - Chemistry Unit 4: The Periodic Table and Periodicity...

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