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Aluminum
Metallic Bonding
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AluminumDuring metallic
bonding the valence electrons become delocalized.
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Sea of Electron Model
Metallic Bonding is the result of
delocalized valence electrons and the
electrostatic force.
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Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron Model
Sea of Electron ModelExplains the properties of metals:
Metals are good conductors--Heat--Electricity
Metals are malleableMetals are ductileMetals have high melting points
Tightly bound cations are surrounded by a sea of negative delocalized electrons.
There is a very strong electrostatic force holding metals together.
Sea of Electron ModelExplains the properties of metal:
Metals are good conductors--Heat--Electricity
Metals are malleableMetals are DuctileMetals have high melting points
Sea of Electron ModelExplains the properties of metal:
Metals are good conductors--Heat--Electricity
Metals are malleableMetals are DuctileMetals have high melting points
Metals conduct thermal energy (heat) quite well because the delocalized electrons are capable of transferring kinetic energy very easily.
Also, the close packing of metal atoms allows them to transfer vibrational energy between one another much more efficiently.
Sea of Electron ModelExplains the properties of metal:
Metals are good conductors--Heat--Electricity
Metals are malleableMetals are DuctileMetals have high melting points
Science Experiment!
Sea of Electron ModelExplains the properties of metal:
Metals are good conductors--Heat--Electricity
Metals are malleableMetals are DuctileMetals have high melting points
Electricity is the flow of electrons. Delocalized electrons that are already freely moving are capable of conducting electricity very well.
Electrons usually move randomly but when connected to a battery electrons in a metal will stream towards the positive end.
Sea of Electron ModelExplains the properties of metal:
Metals are good conductors--Heat--Electricity
Metals are malleableMetals are DuctileMetals have high melting points
Sea of Electron ModelExplains the properties of metal:
Metals are good conductors--Heat--Electricity
Metals are malleableMetals are DuctileMetals have high melting points
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Sea of Electron ModelExplains the properties of metal:
Metals are good conductors--Heat--Electricity
Metals are malleableMetals are DuctileMetals have high melting points
Malleable: capable of being pounded into thin sheets.
Sea of Electron ModelExplains the properties of metal:
Metals are good conductors--Heat--Electricity
Metals are malleableMetals are DuctileMetals have high melting points
DUCTILE: capable of being stretched into thin wire.
Sea of Electron ModelExplains the properties of metal:
Metals are good conductors--Heat--Electricity
Metals are malleableMetals are DuctileMetals have high melting points
Metals: transfer thermal energy well and are tightly held together by electrostatic forces and resist melting.
ASSIGNMENT[1]What is an alloy, why are they useful? List three practical alloys and explain their application.[2] What metal is a liquid at room temperature and why?[3] Explain the disappearing spoon trick in chemistry.[4] In you own words, what is metallic bonding and how does it explain the properties of metals?
