Chemical Species and Formulae
- Created by: Florence A
- Created on: 28-04-19 13:27
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- Chemical Species and Formulae
- Atoms
- Metal elements are atoms
- Molecules
- Non-metal elements/compounds are molecules
- The formula shows the number of atoms each molecule contains
- Ions
- Have a positive or negative charge
- Always found in ionic compounds
- Metal elements form positive ions
- Non-metal elements usually form negative ions
- Molecular Ions
- Charged chemical species that contain two or more elements
- Atoms
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