Edexcel C2 Revision
Across
- 4. sulfate the insoluble salt given to patients before an x-ray (6, 7) (solubility and chemical tests)
- 6. the charge of a neutron (atomic structure)
- 11. the centre part of an atom (atomic structure)
- 12. an insoluble salt formed by a chemical reaction (solubility and chemical tests)
- 14. an element that is a brown liquid at room temperature (periodic table/ halogens)
- 15. a sub-atomic particle with negligible mass (atomic structure)
- 18. the group of metals in the centre of the periodic table (periodic table)
- 19. the unreactive group on the periodic table (5, 5) (periodic table)
- 20. the colour of potassium ions in a flame test (solubility and chemical tests)
- 21. a chemical reaction that gives out heat energy (exo/endo reactions)
- 22. a separating technique used to separate mixtures by mass (separation techniques)
- 25. the atomic number gives the number of........ (atomic structure)
- 26. a chemical reaction which takes in heat energy (exo/endo reactions)
- 30. the gas formed when alkali metals react with water (alkali metals)
- 31. a bond between two non-metals (structure and bonding)
- 32. a charged atom (structure and bonding)
Down
- 1. a crystalline structure with a high melting point is a giant ionic ..... (structure and bonding)
- 2. distillation a separating technique used to separate miscible liquids (separation techniques)
- 3. the name given to group 7 of the periodic table (periodic table)
- 5. an element that is a pale green gas at room temperature (periodic table/ halogens)
- 7. the atomic mass minus the atomic numbers gives the number of .... (atomic structure)
- 8. the charge on an electron (atomic structure)
- 9. a factor that effects the rate of reaction (rates of reaction)
- 10. a factor that effects the rate of reaction (rates of reaction)
- 13. the charge on a proton (atomic structure)
- 16. something that speeds up a reaction without being used up (rates of reaction)
- 17. the maximum number of electrons in the 2nd shell of an atom (structure and bonding)
- 23. when lithium reacts with water one of the products is lithium ......... (alkali metals)
- 24. an example of an exothermic reaction (exo/endo reactions)
- 27. the least reactive alkali metal (alkali metals)
- 28. an example of an endothermic reaction (exo/endo reactions)
- 29. a bond between a metal and a non-metal (structure and bonding)