Chemistry C1.1

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  • Created by: keiralouu
  • Created on: 17-05-16 18:52
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  • C1.1 Atoms
    • All substances are made up of atoms.
    • A substance made up of only one type of atom is called an element.
    • A compound is made up of more than one type of atom.
    • A proton has a positive charge (+1).
    • An electron has a negative charge (-1).
    • A neutron has no charge (0).
    • atoms have a small nucleus which is made up of protons and electrons.
    • EXAMPLE: an oxygen atom is called 'O' on the periodic table.
    • EXAMPLE: sodium is called 'Sa' on the periodic table.


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