Name Date Class ORGANIZING THE ELEMENTSSection ReviewObjectivesExplain how elements are organized in a periodic tableCompare early and modern periodic tablesIdentify three broad classes of elementsVocabularyperiodic lawmetalsnonmetalsmetalloidsPart A CompletionUse this completion exercise to check your understanding of the concepts and terms that are introduced in this section. Each blank can be completed with a term, short phrase, or number.
Chemists used the _______ of elements to sort them into groups. The periodic table organizes the elements into vertical _______ and horizontal _______ in order of increasing _______. The table is constructed so that elements that have similar chemical properties are in the same _______. _______ have a high luster, or sheen, when cut. Most nonmetals are _______ at room temperature.Elements with properties that are similar to those of metals and nonmetals are called _______. Across the periodic table, the properties of elements become _______ metallic and _______ nonmetallic.