CHEMISTRY GCSE-EDEXCEL
all information has been from my classwork book. All this work is probably grade C/B
- Created by: Shola McGrory-Roberts
- Created on: 28-02-13 18:36
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- CHEMISTRY GCSE-EDEXCEL
- atomic theory.
- what is an atom?
- atoms are very very small.
- ALL matter in the universe is made from atoms.
- elements are made from atoms of the same type.
- Can atoms be broken?
- not enough energy in a chemical reaction to break atoms
- CAN be broken in HIGH energy impact.
- what is an ion?
- an ion is basically an atom thats has an overall charge of either positive or negative.
- for information on atomic structure see bbc bitesize > science > AQA > fundamental ideas > atomic structure > activity
- what is an atom?
- Compounds.
- what are things made of?
- matter is defined as anything that up space and has a mass.
- what is a compound?
- a compound contains two or more atoms joined together.
- what are things made of?
- Chemical Formulae.
- working out chemical formulae.
- Work out: Na+ Cl- (write out the ions, positive ions first) Change the charge into numbers. Swap and drop the numbers. Tidy up. Should Get NaCl
- Try: 1) K+ Cl- 2) Li+ O2- 3) Al3+ Br-
- answers: 1) KCl 2) Li2O 3) AlBr3
- How do you balance an equation?
- http://misterguch.brinkster.net/eqnbalance.html =If you cant balance an equation use this site, it helps loads
- working out chemical formulae.
- atomic theory.
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