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year 9 chemistry recap
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year 9 chemistry recap
what are they made of?
- Atoms
- descriptionsof atoms have changed over time
- structure
- nutrons
- protons
- mass of approx .1AMU
- number of P's
- positily charged
- mass of approx .1AMU
- protons
- electrons
- negatively charged
- orbit the atoms
- remain in the orbit around atoms due to attractions for positily charged protons
- changing the number of a gives the atoms a charge -called an iroi
- nutrons
- Atoms
chemical reactions
- signs of a chemical reactions
- signs of a chemical reactions
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- Mind Map on year 9 chemistry recap, created by Ashley Graham on 29/01/2019.
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- Ashley Graham
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