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lesson vocab chap. 3
Question | Answer |
---|---|
a chart of the elements arranged into rows and columns according to their physical and chemical properties | periodic table |
a column on the periodic table | group |
a row on the periodic table | period |
an element that is generally shiny. it is easily pulled into wires or hammered into thin sheets | metal |
describes the ability of a metal to reflect light | luster |
the ability t be pulled into thin wires | ductility |
the ability of a substance to be hammered into thin sheets | malleability |
elements in group 1 | alkali metal |
elements in group 2 | alkaline earth metal |
elements in groups 3-12 | transition element |
metals that have no metallic properties | nonmetal |
elements in group 17 | halogen |
elements in group 18 | noble gas |
an element that has physical and chemical properties of both metals and nonmetals | metalloid |
conducts electricity at high temperatures , but not at low temperatures | semiconductor |