1. Type of sub-atomic particleRelative chargeMass Proton Neutron Electron

2. Columns = groups Group number = Rows = periods Row number =

3. Atomic number: ………………… ………………… ………………… ………………… ………………… ………………… ………………… ………………… ………………… Mass number: ………………… ………………… ………………… ………………… ………………… ………………… ………………… ………………… …………………

4. Each shell = different energy level Shell nearest nucleus = lowest energy level Energy needed to ………........................................... ………………………………………… …………………………………………

5. Group 1 metals (aka alkali metals) - Have 1 electron in outer most shell - Soft metals, easily cut - Reacts with water and oxygen - Reactivity increases down the group - …………………………………………………………………………………

6. Group 0/8 metals (aka noble gases) - Have 2/8 electrons in outer most shell - …………………………………………………………………………………

7. No.ElementShell 1234 1Hydrogen1 2Helium2 3Lithium2 4Berylium2 5Boron2 6Carbon2 7Nitrogen2 8Oxygen2 9Fluorine2 10Neon2 No.ElementShell 1234 11Sodium28 12Magnesium28 13Aluminium28 14Silicon28 15Phosphorus28 16Sulphur28 17Chlorine28 18Argon28 19Potassium28 20Calcium28

8. Mixture The combined substances do not change Easy to separate Compound ……………………………………………………………………………

9. Very strong forces of attraction between positive and negative ions = …………………… Look! Group 1 element Look! Group 7 element

10. Ionic bonds form a ………………………………………………………

11. Simple moleculesGiant structures