1. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 1 Patterns of Reactivity

2. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 2 Q1. Name the lowest density metallic element. It is soft and reactive.

3. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 3 A1. Lithium

4. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 4 Q2. Name a soft, reactive, low density metallic element, important for healthy plant growth.

5. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 5 A2. Potassium

6. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 6 Q3. Name a soft, reactive, low density metallic element used in yellow street lights.

7. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 7 A3. Sodium

8. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 8 Q4. Name a silver-white low density metallic element used for saucepans and bicycle wheel rims.

9. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 9 A4. Aluminium

10. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 10 Q5. Name a soft, dense, unreactive grey metallic element used in car batteries.

11. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 11 A5. Lead

12. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 12 Q6. Name an orange metallic element used for household electrical wiring.

13. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 13 A6. Copper

14. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 14 Q7. Name an unreactive metallic element with extremely high electrical conductivity used for coins.

15. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 15 A7. Silver

16. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 16 Q8. Name a very unreactive, expensive yellow metallic element used for jewellery.

17. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 17 A8. Gold

18. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 18 Q9. Name a non metallic gaseous element needed for respiration.

19. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 19 A9. Oxygen

20. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 20 Q10. Name the most common magnetic element. Corrodes to form rust.

21. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 21 A10. Iron

22. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 22 Q11. Name an industrially important form of iron used for car bodies and structural girders.

23. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 23 A11. Steel

24. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 24 Q12. Iron corrodes in the presence of air and water to form...

25. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 25 A12. Rust

26. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 26 Q13. What is the most common solvent - contains the elements hydrogen and oxygen.

27. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 27 A13. Water

28. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 28 Q14. What do we call it when mild discolouration of silver, for example, occurs?

29. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 29 A14. Tarnish

30. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 30 Q15. What do we call an unwanted reaction between metals and the atmosphere and water.

31. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 31 A15. Corrosion

32. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 32 Q16. When a complete reaction takes place between acid and alkali they are said to...

33. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 33 A16. Neutralise

34. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 34 Q17. What do we call a chemical with a pH value less than 7? Sulphuric or hydrochloric are examples.

35. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 35 A17. Acids

36. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 36 Q18. What do we call a chemical like sodium hydroxide with a pH value greater than 7.

37. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 37 A18. Alkali

38. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 38 Q19. Where is iron produced in industrial quantities?

39. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 39 A19. In a blast furnace

40. © NTScience.co.uk 2005KS3 Unit 9f - Patterns of Reactivity 40 Well Done! Now check your score