Difference between revisions of "Positive Ion"
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| style="height:20px; width:200px; text-align:center;" |[[Aluminium]] forms +3 [[ion]]s. | | style="height:20px; width:200px; text-align:center;" |[[Aluminium]] forms +3 [[ion]]s. | ||
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| + | ===References=== | ||
| + | ====AQA==== | ||
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| + | :[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Positive ion, testing, pages 263, 274-5, GCSE Chemistry; Student Book, Collins, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/178294639X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294639X&linkCode=as2&tag=nrjc-21&linkId=51599bb45a2bfaf7c1b6a978b2ca2616 ''Positive ions, page 70, GCSE Combined Science Trilogy; Chemistry, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Positive ions, pages 38, 186-187, 190-191, GCSE Chemistry; Third Edition, Oxford University Press, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945962/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945962&linkCode=as2&tag=nrjc-21&linkId=476bb5c8d1dfb5c08ac81b6d4d1c98d8 ''Positive ions, pages 72, 258, 259, GCSE Chemistry, CGP, AQA ''] | ||
Revision as of 22:04, 10 November 2019
Key Stage 4
Meaning
Positive ions are elements which have lost one or more electrons to become positively charged.
About Positive Ions
- In chemical reactions between metals and non-metals the metal elements form positive ions.
- Hydrogen forms positive ions in some compounds and it is these H+ ions which can make solutions acidic.
- Positive ions are attracted to negative ions and to the negative electrode (cathode) during electrolysis.
Examples
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| Lithium forms +1 ions. | Magnesium forms +2 ions. | Aluminium forms +3 ions. |
References
AQA
- Positive ion, testing, pages 263, 274-5, GCSE Chemistry; Student Book, Collins, AQA
- Positive ions, page 70, GCSE Combined Science Trilogy; Chemistry, CGP, AQA
- Positive ions, pages 38, 186-187, 190-191, GCSE Chemistry; Third Edition, Oxford University Press, AQA
- Positive ions, pages 72, 258, 259, GCSE Chemistry, CGP, AQA