Chapter 10 Modern Atomic Theory and the Periodic Table
Chapter 10 Modern Atomic Theory and the Periodic Table
Chapter 10 Modern Atomic Theory and the Periodic Table
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<strong>10</strong>.6 Electron structures <strong>and</strong> <strong>the</strong> periodictable1869 Mendeleev & Meyerperiodic arrangements of <strong>the</strong> elements based onincreasing atomic massesperiodic tableperiod – horizontal row<strong>the</strong> outmost energy levelgroup or family – vertical columnelements behave in a similar mannerIA ~ VIIA, IB ~ VIIB, VIII, noble gases1 ~ 18representative elements – A group elementstransition elements – B group elementsIA – alkali metals IIA – alkaline earth metals13VIIA – halogens