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Metals, Nonmetals, and Metalloids (Vocabulary)
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Periodic Table of Elements A table in which all the known elements are arranged by properties and are represented by one or two letter chemical symbols.
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Metals Elements which have physical properties such as good conductivity, shiny luster, malleability and ductility.
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Nonmetals Elements which have physical properties such as no conductivity (an insulator), dull luster, and brittleness (will break).
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Metalloids Elements which can have both properties of metals and nonmetals. Also may be called a semi- conductor.
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Luster The way a substance reflects light; Examples Shiney Dull Metalic Waxy
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Malleability How well it can be hammered into thin sheets. Examples Flattened penny Aluminum can Tin foil Aluminum foil
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Brittle The tendency to break, snap, or crack without first bending or changing shape as a result of application of little force.
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Conductivity How well it allows electricity to move through.
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Ductility Can be stretched into wire.
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Magnetism Attracted to or repelled by a magnet.
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Conductor a material that conducts or transmits heat, electricity, or sound
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Insulator A substance that does not allow the heat or sound to pass through
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Semiconductor A substance that can conduct electricity or heat under some conditions but not others
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Sonorous An object that produces a sound when struck by another object.
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Density Formula D = mass/volume (I density)
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Water Displacement A method used to calculate the volume of an irregular shaped object.
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Volume Formula V = L x W x H
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