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9 Cards in this Set

  • Front
  • Back
seperates a mixture of liquids.
seperates a dissolved solid from a liquid
seperates an insoluble solid from a liquid
bioloical catalyst. catalyse the chemical reactions which take place in living cells of plants and animals.
How would you find the table from the mass/atomic number?
mass number= P + E
atomic number= p
number of N= mn-an
What are Isotopes?
they have the same atomic number but different mass number.
What is a covalent bond?
2 positive nuclei being held together by their common attraction. non conductors
What is an Ionic bond?
metal atoms lose electron to form positivley charged ions. metal + non metal.
What is metallic bonding?
electrostatic force of attraction between +ve ions in the crystal lattice with delocolised electrons.