Atomic structure and periodic table

Cards (100)

  • H - hydrogen
  • He - helium
  • Li - lithium
  • Be - beryllium
  • B - boron
  • C - carbon
  • N - nitrogen
  • O - oxygen
  • F - fluorine
  • Ne - neon
  • Na - sodium
  • Cu - copper
  • Ga - gallium
  • As - arsenic
  • Br - bromine
  • Rb - rubidium
  • Mg - magnesium
  • Al - aluminium
  • Si - silicon
  • P - phosphorus
  • S - sulfate
  • Cl - chlorine
  • Ar - argon
  • K - potassium
  • Ca - calcium
  • Ti - titanium
  • Cr - chromium
  • Fe - iron
  • Zn - zinc
  • A compound is a substance that contains two or more elements that are chemically combined
  • An ion is a charged particle formed when an atom or group of atoms loses or Gaines an electron
  • (aq) aqueous
  • A mixture consists two or more different substances that are not chemically bonded together
  • Filtration is a method used to separate an insoluble solid from an liquid eg sand and water filtration paper ha tiny holes or pores in it that let the liquid molecules through but not the solid
  • Crystallisation is used to produce solid crystals from a solution. When the solution is warmed some of the solvent evaporates leaving crystals behind
  • Simple distillation is used to separate a solvent from a solution eg pure water from sea water
  • Simple distillation works because the dissolves solute has a much higher boiling point than the solvent. When the solution is heated solvent vapour leaves the solution is cooled and than condensed. The remaining solution becomes more concentrated as the amount of solvent in it decreases.
  • Fractional distillation is used to separate different liquids from a mixture of liquids eg separating ethanol from a mixture of ethanol
  • fractional distillation works because the different liquids have different boiling points. When the mixture is heated vapours rise through a column which is hot at the bottom and cooler at the top. Vapours condense when they reach a part of the column that is below the temperature of their boiling point each liquid is led away from the column
  • Paper chromatography is used to separate mixtures of soluble substances