c4- the periodic table

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  • Created by: shiona
  • Created on: 29-03-13 09:43

the nucleus:

  • Middle of the atom
  • contains protons and neutrons
  • has a positive charge
  • almost the whole mass of the atom is concentrated in the nucleus

the electroms:

  • move around the nucleus in a shell
  • negitively charged
  • cover alot of space
  • very small (tiny)
  • have no mass

number of protons = number of…

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