Atomic Number, Mass Number and Isotopes
- Created by: Annie
- Created on: 02-01-15 17:23
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- Atomic Number, Mass Number and Isotopes
- Ions
- Formed when an atom loses or gains an electron
- When an atom loses an electron it becomes a POSITIVELY CHARGED ION
- When an atom gains an electron, it becomes a NEGATIVELY CHARGED ION
- Atomic Number and Mass Number
- Atoms of the same element have the same Atomic Number
- Isotopes of the same element have same Atomic Number but a different Mass number
- Mass No: Number of protons and neutrons in an atom
- Ions
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