Chemistry-Atoms and elements C1

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  • Chemistry-C1
    • Atoms
      • The nucleus
        • Middle of atom
        • Contains protons and neutrons
        • radius of around 1*10/\-14\/m
        • Positive charge because of the protons
        • Almost the whole mass
      • Atomic number
        • Tells you how many protons there are
      • Mass number
        • Tells you total number of protons and neutrons
      • Number of protons = number of electrons
    • Elements
      • Consists of atoms with the same atomic number
      • Isotopes
        • Isotopes are different forms of the same element, which have the same number of protons but a different number of neutrons
          • So isotopes have the same number of protons but a different number of neutons
        • RAM=sum of(IA*IMN)/ sum of (AofAI)
          • RAM=Relative atomic mass
          • IA=Isotope abundance
          • IMN=Isotope mass number
          • AofAI= Abundance of all the isotopes

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