Combined Science GCSE
Positive ion
What Positive ion means in Combined Science GCSE, as defined for AQA.
Definitions of Positive ion
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Reference: AQA
The ion in the base, alkali or carbonate that determines the first part of the salt name and comes from the base, alkali or carbonate.
Formed when an atom loses electrons from the outer shell so that the number of protons exceeds the number of electrons.
A metal atom loses electrons to become a positively charged ion.
Topics that use Positive ion
- Ionic bonding (AQA GCSE)
- Metals and non-metals (AQA GCSE)
- Neutralisation of acids and salt production (AQA GCSE)
Related terms
- Acid anions
- Acids, bases and alkalis
- Atomic number
- Balanced equations and state symbols
- Charge and notation
- Charges
- Chemical reactivity and ion formation
- Covalent bonds
Using Positive ion in the exam
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