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Thursday, 16 June 2011

Physical properties of Metals



The physical properties of metals can be easily explained in terms of this "electron sea" model of metallic bonding. Characteristic physical properties of metals include:
  • Metals are ductile (they can be drawn into wires) and metals are malleable (they can be pounded into thin sheets)
  • Metals have relatively high melting points and remain in the liquid state over a wide temperature range.
  • The transition metals have higher melting points than main group metals (those in Group IA and IIA). The lanthanons and actinons also have higher melting points than the metals in Group IA and IIA.
  • Metals have varying degrees of hardness.
  • Metals conduct electricity and heat.
  • Metals are usually shiny. They have luster.
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