Term
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Definition
- An ionic bond is formed by two ions of different charges.
- It involves the transfer of electrons (-ve) to form ions.
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Term
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Definition
| An ion is particle which has either lost or gained an electron. |
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Term
| How are ions formed in Ionic bonds? |
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Definition
- Metals loose electrons to form Cations(+ve charge)
- Non-metals gain electrons to form Anions(-ve charge)
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Term
| How are Cations and Anions attracted to eachother? |
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Definition
- they have opposite charges= Cation (+ve) and Anion (-ve)
- the ion bond is held together by an electrostatic force
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Term
| How can we work-out the valency of metals and non-metals? |
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Definition
Metals charge= group number
Non-metals charge= 8-group number
[image] |
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Term
| Draw a diagram to show what happens to the electrons, when a sodium atom reacts with a chlorine atom. |
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Definition
Valency:
Sodium= 1
Chlorine= 8-7= -1
[image] |
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