Across
- 2. metals below hydrogen in the reactivity series are found in their ____ state
- 3. two or more different elements chemically bonded together
- 5. this is how you extract metals in the reactivity series below carbon but above hydrogen
- 8. the name of a system that nothing can get in or out of
- 9. the centre of an atom
- 11. two or more different elements or compounds not chemically bonded
- 14. the process of removing insoluble substances from soluble ones
- 15. the halogens get ___ reactive as you go down the group
- 16. the bonding when the electrons are donated or received
- 20. sub-atomic particle with a neutral charge
- 22. electrolysis of aluminium oxide is ____ as the anodes need replacing regularly
- 24. this is how you extract metals above carbon in the reactivity series
- 26. Mr X Mass = ??
- 31. a mixture of gases found in our atmosphere
- 34. the type of reaction when a more reactive element takes the place of a less reactive one
- 35. this is the physical process of a salt forming after evaporation
- 38. acids all have this ion
- 40. one type of atom only
- 43. a property of the Nobel gasses
- 44. is you neutralise a base with sulfuric acid your salt will be a metal...
- 45. a type of fullerene made of a rolled layer of graphene
- 47. sub-atomic particle with a negative charge
- 48. Mendeleev left gaps for ____ elements
- 50. this series tells you how reactive a metal is
- 52. acid + base --> ___ + water
- 53. the name of the group 7 elements
Down
- 1. for electrolysis to work it must be aqueous or...
- 2. this type of reaction occurs when you react an acid & base together
- 3. negative electrode
- 4. today's periodic table is arranged by atomic ...
- 6. this is the material the cup is made from in the energy changes required practical
- 7. the full name for a bucky ball
- 10. the variable you keep the same
- 11. the type of bonding in metals
- 12. splitting an ionic substance using electricity
- 13. This man discover the neutron
- 17. the alkali metals get ... reactive as you go down the group
- 18. the name of the apparatus used to measure energy change
- 19. a salt made with hydrochloric acid will be a metal ___
- 21. postive electrode
- 23. a measure of how acidic something is
- 25. the bonding when electrons are shared
- 27. A reaction that releases enery to its surroundings
- 28. alkalis all have this ion
- 29. the variable you measure
- 30. sub-atomic particle with a positive charge
- 32. a mixture including metals that are harder than pure metals
- 33. a giant covalent molecule that can conduct electricity
- 36. an abbreviation for relative atomic mass
- 37. a reaction that absorbed energy from its surroundings
- 38. this gas is made when a metal and acid react
- 39. in electrolysis of molten or aqueous ionic substances, the ions can move and carry
- 41. the variable you change
- 42. Hydrogen ions + hydroxide ions --> ??
- 46. This Niels discovered electrons were in shells
- 49. the giant covalent structure with a tetrahedral structure
- 51. the name of the metals of group 1