Difference between revisions of "Chemical Bond"
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|[[File:CarbonDioxideDotandCrossDiagram.png|center|200px]] | |[[File:CarbonDioxideDotandCrossDiagram.png|center|200px]] | ||
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− | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |The two [[Oxygen]] [[atom]]s each share two of their [[electron]]s with one another. |
− | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |The two [[Nitrogen]] [[atom]]s each share three of their [[electron]]s with one another. |
− | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |Each [[Oxygen]] shares two of its [[electron]]s with the [[Carbon]] [[atom]] while the [[Carbon]] [[atom]] shares two [[electron]]s with each [[Oxygen]] [[atom]]. |
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|+ Ionic Bonds | |+ Ionic Bonds | ||
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− | |[[File: | + | |[[File:LithiumFluorideDotandCrossDiagram.png|center|200px]] |
|[[File:MagnesiumOxideDotandCrossDiagram.png|center|200px]] | |[[File:MagnesiumOxideDotandCrossDiagram.png|center|200px]] | ||
|[[File:BerylliumFluorideDotandCrossDiagram.png|center|200px]] | |[[File:BerylliumFluorideDotandCrossDiagram.png|center|200px]] | ||
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− | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |The [[Lithium]] [[atom]] donates an [[electron]] from its [[Outer Shell|outer shell]] to the [[Outer Shell|outer shell]] of the [[Fluorine]] [[atom]]. |
− | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |The [[Magnesium]] [[atom]] donates two [[electron]]s from its [[Outer Shell|outer shell]] to the [[Outer Shell|outer shell]] of the [[Oxygen]] [[atom]]. |
− | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |The [[Beryllium]] [[atom]] donates an [[electron]] from its [[Outer Shell|outer shell]] to the [[Outer Shell|outer shell]] of each [[Fluorine]] [[atom]]. |
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|[[File:MagnesiumMetallicBond.png|center|300px]] | |[[File:MagnesiumMetallicBond.png|center|300px]] | ||
− | |[[File: | + | |[[File:AluminiumMetallicBond.png|center|300px]] |
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− | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |The [[Outer Shell|outer shells]] of the [[Magnesium]] [[atom]]s overlap allowing the two [[electron]]s in each [[Outer Shell|outer shell]] to move freely between [[atom]]s. |
− | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |The [[Outer Shell|outer shells]] of the [[Aluminium]] [[atom]]s overlap allowing the three [[electron]]s in each [[Outer Shell|outer shell]] to move freely between [[atom]]s. |
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Revision as of 16:43, 20 December 2018
Key Stage 4
Meaning
A chemical bond is a force of attraction holding the atoms inside a molecule together.
About Chemical Bonds
There are three types of chemical bond you should know:
- Covalent Bonds - In which atoms share electrons with one another.
- Ionic Bonds - In which electrons are transferred from one atom to another.
- Metallic Bonds - In which some electrons move freely between atoms creating lattice of positively charged ions surrounded by a sea of delocalised electrons (free electrons).
Examples
The two Oxygen atoms each share two of their electrons with one another. | The two Nitrogen atoms each share three of their electrons with one another. | Each Oxygen shares two of its electrons with the Carbon atom while the Carbon atom shares two electrons with each Oxygen atom. |
The Lithium atom donates an electron from its outer shell to the outer shell of the Fluorine atom. | The Magnesium atom donates two electrons from its outer shell to the outer shell of the Oxygen atom. | The Beryllium atom donates an electron from its outer shell to the outer shell of each Fluorine atom. |
The outer shells of the Magnesium atoms overlap allowing the two electrons in each outer shell to move freely between atoms. | The outer shells of the Aluminium atoms overlap allowing the three electrons in each outer shell to move freely between atoms. |