2. Atoms, ions and compounds

Cards (16)

  • Relative isotopic mass

    The mass of an atom relative to 1/12 of the mass of an atom of carbon-12.
  • Isotope
    Atoms of the same element that have the same number of electrons and protons, but a different number of neutrons and different masses.
  • Mass to charge ratio
    Relative mass of an ion / relative charge of an ion
  • Hydroxide ion
    OH-
  • Nitrate ion 

    NO3-
  • Nitride ion

    NO2-
  • Ammonium ion 

    NH4+
  • Ammonia ion

    NH3+
  • Hydrocarbonate ion
    HCO3-
  • Carbonate ion

    CO32-
  • Manganate ion
    MnO4-
  • Sulphate
    SO42-
  • Sulphite ion
    SO3 2-
  • Dichromate ion

    Cr2O2 2-
  • Phosphate ion

    PO4 3-
  • Relative isotopic mass (Ar) formula

    Ar = (relative isotopic mass x1 % abundance)+ (relative isotopic mass x2 % abundance) / 100