Chemistry GCSE
Ion formation
What Ion formation means in Chemistry GCSE, as defined for AQA.
Definitions of Ion formation
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Reference: AQA
Metal atoms lose electrons to form positive ions, and non-metal atoms gain electrons to form negative ions.
The loss of electrons results in positive ions, and the gain of electrons results in negative ions.
Outer electrons are lost or gained to form ions, such as one outer electron giving a 1⁺ ion.
Topics that use Ion formation
- Chemical bonds (AQA GCSE)
- Ionic bonding (AQA GCSE)
- The periodic table (AQA GCSE)
Related terms
- Electron transfer
- Ionic bonding
- Alloys
- Atomic number
- Charge and relative numbers of protons and electrons
- Charge balance
- Chemical bonding
- Covalent bonding
Using Ion formation in the exam
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