1. End of Chapter Test Revision PowerPoint

2. Melting and Boiling Points The melting point is the temperature at which a substance changes from a............ to a.............. The boiling point is the temperature at which a substance changes from a............ to a.............. Water melts at.....°C and boils at...... °C. liquid solidliquid gas 0100

3. The periodic table is a list of all the known elements that are arranged according to the similarities in their properties. What type of elements are between metals and non-metals? Metals are on the left and in the centre. Non-metals are mostly on the right. Metals and non-metals in the periodic table

4. Some extra Information about the periodic table As you go across the periodic table the number at the top of each element gets higher. This is the relative atomic mass of the element. The higher the relative atomic mass the bigger the element.

5. What are the properties (features) of metals? Good conductor of electricity Good Conductor of heat Shiny High Density (heavy for its size) Malleable (you can hammer into different shapes)

6. What are the properties of non- metals? Poor conductors of electricity Poor conductors of heat Dull Low density Brittle

7. Group 1 Metals Alkali Metals

8. You need to know about there reactions with water (Equations must also be written in this format!) Lithium + Water Lithium Hydroxide + Hydrogen Potassium + water Potassium Hydroxide + Hydrogen Sodium + Water Sodium Hydroxide + Hydrogen

9. Lets look at some of the alkaline metals we can’t use in school! http://www.youtube.com/watch?v=m55kgyA pYrY http://www.youtube.com/watch?v=m55kgyA pYrY

10. Features of Group 1 Metals Like all metals they are good conductors of electricity and heat. Shiny when cut They get more reactive as you go down a group. There boiling point goes down as you go down the group.

11. Group 7 Elements The Halogens

12. Properties of Halogens Need to learn! ElementSymbolState at room temperature Colour FluorineFGasPale Yellow ChlorineClGasYellow-Green BromineBrLiquidRed-Brown IodineISolidGrey

13. Group 7 Reactions with Iron http://www.youtube.com/watch?v=EvtyMr5E vBY http://www.youtube.com/watch?v=EvtyMr5E vBY What happens to the reactivity of group 7 metals as we go down the group?

15. Displacement Reactions Step 1- Order the elements into reactivity. The most reactive at the top and the least reactive at the bottom. Chlorine Iodine Bromine

16. Chlorine Iodine Bromine Most Reactive Least Reactive

17. Displacement Reactions The more reactive element always beats (displaces) the less reactive element. e.g. Chlorine + Potassium Bromide Potassium Chloride + Bromine

18. Your Turn Bromine + Potassium Iodide Chloride + Sodium Bromide Iodine + Potassium Chloride

19. Group 0 Elements Noble Gases

20. Features of Group 0 The Group 0 elements are known as the noble gases. They are un-reactive, which means they do not react easily. They show some patterns in their chemical and physical properties. For example, the elements lower down the group are slightly more reactive than those at the top of the group.

21. Why are they called the ‘noble gases’? They are all very unreactive. The noble gases all form colourless gases at room temperature. The name was changed to ‘noble gases’ as they were considered similar to the very unreactive precious metals gold and platinum, which are sometimes called ‘noble’ metals. Now only neon and helium have not yet been made to form compounds. Noble gases were originally called ‘inert gases’, as they were thought not to react with anything. Then in 1962, a British chemist, Neil Bartlett, made a compound with xenon.