The+Periodic+Table

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 * Key knowledge **

>> metallic/non-metallic character, chemical reactivity of elements >> >> >
 * The Periodic Table
 * historical development from Mendeleev to Seaborg
 * trends and patterns of properties within The Periodic Table: atomic number, types of compounds formed,
 * atomic theory
 * historical development of the model of atomic theory with contributions from Dalton to Chadwick
 * limitations of the model of atomic theory
 * mass number, isotopes, calculation of relative atomic mass, electronic configuration including subshells
 * the mole concept including empirical and molecular formulas, percentage composition, Avogadro's constant
 * interpretation of data from mass spectrometry