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  • Created by: Annie
  • Created on: 10-12-13 18:29
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  • Isotopes
    • Atoms of the same element which have different numbers of neutrons
    • Isotopes have the same atomic number but a different mass number
    • Carbon has two common Isotopes...
      • Carbon 12 - which has 6 protons and 6 neutrons in the nucleus
      • Carbon-14 which has 6 protons and 8 neutrons
        • The extra neutrons can sometimes make the nucleus unstable therefore radioactive
    • Different Isotopes of elements have different physical properties
      • Higher Density
      • Radioactive
    • Isotopes of an element always have the same chemical properties
      • Because reactions depend on the electronic structure. As their atoms will have same number of electrons, the electronic structure for all isotopes is the SAME!
    • Hydrogen has 3 Isotopes...
      • Hydrogen, Tritium and Deuterium
        • Each has a different mass and tritium is radioactive. However they all react with oxygen to make water.


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