Atomic Number, Mass Number and Isotopes

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  • 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

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