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Metallic bond

Metallic bond. Metals. Made up of closely packed cations surrounded by electrons Outer electron clouds of the metal ions overlap Share their electrons to form a sea of electrons. Metallic Bond. The electrostatic attraction of the delocalized electrons for the positively charged metal ions

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Metallic bond

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  1. Metallic bond

  2. Metals • Made up of closely packed cations surrounded by electrons • Outer electron clouds of the metal ions overlap • Share their electrons to form a sea of electrons

  3. Metallic Bond • The electrostatic attraction of the delocalized electrons for the positively charged metal ions • Electron Sea Model

  4. Properties of Metals • Moderately high melting and boiling points • Good conductors of heat and electricity • Malleable and Ductile • Mobile electrons can easily be pushed or pulled past each other

  5. Structure • Metal atoms are arranged in very compact and orderly patterns • Metals that contain just one kind of atom are among the simplest forms of all crystalline solids

  6. Alloys • Mixture of two or more elements (at least one must be a metal) • Has metallic properties often superior to those of their component elements -Bronze: copper + tin -Steel: iron + carbon + other metals -Sterling silver: silver + copper

  7. Cu Zn Brass at the atomic level Brass though a magnifier

  8. Types of Alloys Substitutional Interstitial Atoms of different sizes • Atoms have relatively the same size

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