Chapter+15

=Periodic Table= == =Column Names= 1st column - The Alkali metals 2nd column - The Alkali Earth metals 17th column - The Halogens 18th column - The Noble Gases =Section 1 Vocabulary( Blue-Definition, Black-Vocabulary) = Period- row of elements on periodic table Group- contains elements with similar physical and chemical properties Representative Elements- Groups 13-18, include metals, metalloids, and nonmetals Transition Elements- Group 3-12, all metals Metals- element with luster, is a good conductor, is malleable, and is ductile Nonmetals- usually gases or brittle solids at room temperature, and are poor conductors Metalloid- element with characteristics of metals and nonmetals =Section 2 Vocabulary= Alkali Metals: silvery solids, low density, and low melting Alkaline Earth Metals: harder, higher melting point than alkali metals Semiconductor: conducts electricity better than nonmetals, but not as good as metal Halogens: called "salt former", form similar salts with sodium and other alkali metals Noble Gases: elements that rarely combine with other elements =Section 3 Vocabulary= Iron Triad- three elements that are so similar(iron, cobalt, and nickel) Catalyst- any substance that speeds up a change in an element Lanthanide- the first in two series, cerium to lutetium Actinides- second in two series, thorium to lawrencium

=Section 1 Quiz= http://glencoe.mcgraw-hill.com/sites/0078600529/student_view0/unit5/chapter15/section_1_self-check_quiz-eng_.html =Section 2 Quiz= http://glencoe.mcgraw-hill.com/sites/0078600529/student_view0/unit5/chapter15/section_2_self-check_quiz-eng_.html =Section 3 Quiz= http://glencoe.mcgraw-hill.com/sites/0078600529/student_view0/unit5/chapter15/section_3_self-check_quiz-eng_.html = =