Difference between revisions of "Giant Metallic Structure"
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| style="height:20px; width:200px; text-align:center;" |[[Malleable]] and [[ductile]] | | style="height:20px; width:200px; text-align:center;" |[[Malleable]] and [[ductile]] | ||
| − | | style="height:20px; width:200px; text-align:center;" |[[ | + | | style="height:20px; width:200px; text-align:center;" |The [[Delocalised Electrons|delocalised electrons]] are free to move so when the [[metal]] [[ion]]s slide past each other the [[Metallic Bond|metallic bonds]] remain just as strong and the [[material]] doesn't break. |
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| + | | style="height:20px; width:200px; text-align:center;" |Good [[Electrical Conductor]] | ||
| + | | style="height:20px; width:200px; text-align:center;" |The [[Delocalised Electrons|delocalised electrons]] are free to move in an [[Electrical Current|electrical current]]. | ||
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| style="height:20px; width:200px; text-align:center;" |Good [[Thermal Conductor]] | | style="height:20px; width:200px; text-align:center;" |Good [[Thermal Conductor]] | ||
| − | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |The [[Delocalised Electrons|delocalised electrons]] are free to move through the [[metal]] carrying [[Thermal Energy|thermal energy]] through the [[material]]. |
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| style="height:20px; width:200px; text-align:center;" |High Melting Point | | style="height:20px; width:200px; text-align:center;" |High Melting Point | ||
| − | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |There is a strong [[Electrostatic Force|electrostatic force]] between the [[Positive Ion|positive ion]]s and the [[Delocalised Electrons|delocalised electrons]]. |
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Revision as of 14:31, 31 December 2018
Key Stage 4
Meaning
A giant metallic structure is a group of metal atoms held together by metallic bonds.
About Giant Metallic Structures
- In giant metallic structure the metal atoms are held together as a lattice of positive ions surrounded by a sea of delocalised electrons.
- In a pure element the atoms are arranged in a regular lattice.
- When there is a mixture of metal elements it is called an alloy and the different atoms change the pattern in the lattice.
- A small number of different metal atoms added to a material can change the physical properties and chemical properties of the material.
Bulk Properties
- In their solid state giant metallic structures are good electrical conductors because it contains delocalised electrons.
- Most ionic compounds are soluble in water.
- When dissolved in solution ionic compounds are good electrical conductors because the electrically charged ions are free to move.
- Ionic compounds form giant ionic structures which have high melting points due to the strong electrostatic force between the ions.
| Property | Reason |
| Malleable and ductile | The delocalised electrons are free to move so when the metal ions slide past each other the metallic bonds remain just as strong and the material doesn't break. |
| Good Electrical Conductor | The delocalised electrons are free to move in an electrical current. |
| Good Thermal Conductor | The delocalised electrons are free to move through the metal carrying thermal energy through the material. |
| High Melting Point | There is a strong electrostatic force between the positive ions and the delocalised electrons. |