Science - Metals and Non-Metals

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Last updated 4:44 PM on 5/20/26
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9 Terms

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Physical properties

The characteristics and features that define any material.

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How many elements are found naturally on earth? And what can they be classified as?

92,

Metals, Non-Metals and Metalloids

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Properties of a metal

  • Shiny

  • High Melting point

  • Good electrical and heat conductivity

  • Malleable

  • Ductile

  • High density

(eg, titanium, aluminum, iron, copper, tungsten, etc.)

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Key points of metallic bonding

  • Atoms held together by electron cloud

  • Electrons are free to move making metals malleable and good conductors

<ul><li><p>Atoms held together by electron cloud</p></li><li><p>Electrons are free to move making metals malleable and good conductors</p></li></ul><p></p>
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Conductor

Something that conducts heat and electricity

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Insulator

Something that doesn’t conduct heat or electricity

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Alloys

A substance created when combining 2 elements (metal on metal or metal on non-metal

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Examples of alloys

  • Brass - Copper and Zinc alloy

  • Bronze - Copper and Tin alloy

  • Stainless steel - Iron, Chromium and Nickel alloy

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Properties of Non-Metals

  • Dull in appearance

  • Low melting and boiling points

  • Poor electrical and heat conductivity

  • Brittle

  • Not ductile

  • Low density