chemistry hl revision

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Across
  1. 2. aluminum oxide is _____ in nature
  2. 6. which alkali metal reacts with water to produce a lilac flame?
  3. 9. this property decreases along a period
  4. 13. the radiation lower in energy to infrared is ___
  5. 14. colour of chlorine gas
  6. 15. max number of electron in f subshell
  7. 16. tendency of substance to vapourise is called
  8. 17. a region around nucleus in which there is 90% probability of finding an electron
  9. 18. ionic compounds have _____structure
  10. 20. atoms of same element with same Z but different A
  11. 21. shape of p orbital is?
  12. 24. it is measure of ability of an atom to attract electrons in a covalent bond
  13. 27. shape of a complex with CN = 6
  14. 28. particles in an atom are called ______________
  15. 30. a positive ion is called?
  16. 33. iron, nickel and cobalt are?
  17. 35. series of lines produced when electron falls from shell 3 to closest shell to nucleus
  18. 36. ____is not a transition metal
Down
  1. 1. a catalyst which is in same state as reactants
  2. 3. in a mass spectra y axis is__
  3. 4. _______are bases which are soluble in water
  4. 5. attraction between oppositely charged ions is called?
  5. 7. colour of silver iodide ppt
  6. 8. instrument used to emasure mass of indvidual atoms.
  7. 10. we cant know when an electron is at any given instant, which principle is this?
  8. 11. max number of electron possible in 4th shell
  9. 12. charge of a neutron
  10. 19. silica has ___structure
  11. 22. as we go up halogens mp ___
  12. 23. no more than 2 electron can be in 1 orbital, which principle is this?
  13. 24. it is the energy change when 1 mole of electrons is added to 1 mole gaseous atoms
  14. 25. number of electrons in Ra with A = 226 and Z = 88
  15. 26. what does an arrow from n=1 to n=infinity denote?
  16. 29. size of an anion is always _____than size of a cation
  17. 31. ionisation energy along a period
  18. 32. which halogen was used in world war I as a chemical weapon
  19. 34. polydentate ligands act as _______agents