C1.7
- Created by: mayaholdstock
- Created on: 23-07-17 14:35
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- C1.7 Ions, atoms and isotopes
- An ion is a charged atom (or group of atoms)
- If it gains electrons it becomes a negatively charged ion
- If it loses electrons it becomes a positively charged ion
- Atoms of the same element will always have the same protons but might have different numbers of neutrons
- Atoms of the same element with different numbers of neutrons are called isotopes
- Isotopes have different physical properties but always have the same chemical properties
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