Elements and the Periodic Table FLASHCARDS

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Pure substance

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Substance made of only one kind of particle

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Atom

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The basic building block of all matter; the smallest particle of an element

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Element

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A pure substance made of only one type of atom.

*cannot be broken down into simpler substances

All known elements (118 to date) are found on the periodic table.

Each element can be identified by a unique set of physical and chemical properties such as density, melting pt, boiling pt and reactivity

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Metals

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The LARGEST category of elements that have luster (shine), are malleable, ductile and good conductors of heat and electricity

*Found in the CENTER and LEFT side of periodic table

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Luster

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Shine

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Malleable

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Capable of being hammered into thin sheets without breaking

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Ductile

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Can be drawn into wire

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Nonmetals

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Elements that are dull, brittle, not malleable or ductile and poor conductors of heat and electricity.

• * found on the RIGHT side of the periodic table

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Brittle

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Shatters easily

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Metalloids

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Also known as semiconductors

The SMALLEST category of elements that have properties of both metals and nonmetals

• * run diagonally between metals and nonmetals on the Periodic Table starting with the element boron