the chinese university of hong kong edd 5161a (group 5) subject: chemistry topic: common metals
TRANSCRIPT
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The Chinese University of Hong KongThe Chinese University of Hong KongEDD 5161A (Group 5)EDD 5161A (Group 5)
Subject: Chemistry
Topic: Common Metals
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Distribution of workContent Content : Wong Chi Wai: Wong Chi Wai
Design content layoutDesign content layout: Ho Pui Yan, Sze Hiu Ying, : Ho Pui Yan, Sze Hiu Ying, Wong Chi Wai, Yiu Bo KwaiWong Chi Wai, Yiu Bo Kwai
Graphic DesignGraphic Design: Ho Pui Yan, Sze Hiu Ying, Wong : Ho Pui Yan, Sze Hiu Ying, Wong Chi Wai, Yiu Bo KwaiChi Wai, Yiu Bo Kwai
Sound effectSound effect: Ho Pui Yan,Wong Chi Wai, Yiu Bo : Ho Pui Yan,Wong Chi Wai, Yiu Bo KwaiKwai
Final make - upFinal make - up: Sze Hiu Ying: Sze Hiu Ying
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Introduction
This presentation package is suitable for This presentation package is suitable for Form 4 Chemistry students. It provides Form 4 Chemistry students. It provides background knowledge of metals. It would background knowledge of metals. It would be used as lecture notes with teacher’s be used as lecture notes with teacher’s explanation. explanation.
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Common MetalsCommon Metals
Factors for the use of metalsFactors for the use of metals Uses of common metalsUses of common metals Process of obtaining metalProcess of obtaining metal Factors for availability of metalFactors for availability of metal Structure of metalStructure of metal Properties of metal Properties of metal
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Factors for the use of metal
It is very hard!
Hardness
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Good appearance
Factors for the use of metal
The gold isvery attractive
It is veryexpensive
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Factors for the use of metal
I can fly!
Low Density
High Density
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Factors for the use of metal
Corrosion Corrosion resistantresistant
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Uses of Metals
IronIron TitaniumTitanium CopperCopper AluminiumAluminium GoldGold
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Uses of Iron
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Uses of Titanium
Titanium is used to build plane &Titanium is used to build plane &spacecraft body.spacecraft body.
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Uses of Copper
Electrical wires Water pipes Cooking Utensils
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Uses of Aluminium
Windowframe Soft drink
can
OverheadCable
Plane body
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Uses of Gold
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Process of Obtaining MetalProcess of Obtaining Metal
Mining the metal oresMining the metal ores Extraction Extraction PurificationPurification
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Factors for the availability of metals
Cost of extraction
Cost of mining the metal ores
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- Electron + - Positive ion
Structure of Metals
Giant metallic bondGiant metallic bond
Delocalized mobile electrons - ‘sea’ of electronsDelocalized mobile electrons - ‘sea’ of electrons
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Properties of Metal
Hot hot!
High melting point & boiling point
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Good heat conductor
Good electrical conductor
Properties of Metal
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Properties of Metal
I’m flattened!Malleable
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Properties of Metal
Help!
Ductile !
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The End
Congratulations!