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IONIZATION ENERGIES

IONIZATION ENERGIES. Ionization energies and group numbers. Isonization Energies , what is it? energy required to remove outer electrons from atoms and form positive ions. . . . e -. +. M (g). +. M + (g). →. IE. electron. Ionisation Energy. atom.

philip-solis
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IONIZATION ENERGIES

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  1. IONIZATION ENERGIES

  2. Ionization energies and group numbers Isonization Energies, what is it? energy required to remove outer electrons from atoms and form positive ions    e- + M (g) + M+(g) → IE electron Ionisation Energy atom Positive Nuclear Charge 11Na : 1e- 2e- +11 8e- n=3 n=2 n=1 Free Template from www.brainybetty.com

  3. Ionization energies and group numbers Things to be considered: 1. Atomic radius r IE 2. Positive nuclear charge z IE 3. The number of electrons in the inner shell (shielding effects) e IE Free Template from www.brainybetty.com

  4. Decreases IE Ionization energies and group numbers Increases IE Free Template from www.brainybetty.com

  5. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  6. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  7. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  8. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  9. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  10. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  11. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  12. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  13. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  14. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  15. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  16. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  17. Ionization energies and group numbers 0 I VI V IV III II VII Free Template from www.brainybetty.com

  18. Ionization energies and group numbers 0 I VI V IV III II VII stable electronic configuration Free Template from www.brainybetty.com

  19. e- IE1: + M (g) + M+(g) → IE Ionization energies and group numbers Successive Ionisation Energies e- IE2: + M+(g) + M2+(g) → IE e- IE3: + M2+(g) + M3+(g) → IE e- IE4: + M3+(g) + M4+(g) → IE Free Template from www.brainybetty.com

  20. Ionization energies and group numbers Free Template from www.brainybetty.com

  21. Ionization energies and group numbers Free Template from www.brainybetty.com

  22. Ionization energies and group numbers Free Template from www.brainybetty.com

  23. Ionization energies and group numbers Free Template from www.brainybetty.com

  24. Ionization energies and group numbers Free Template from www.brainybetty.com

  25. Ionization energies and group numbers Free Template from www.brainybetty.com

  26. Ionization energies and group numbers inner electron shell Free Template from www.brainybetty.com

  27. Ionization energies and group numbers In which group of periodic table would you place the element with the following successive ionisation energies? 1680, 3370, 6040, 8410, 11000, 15200, 17900, 92000, 106000 kJ mol-1 Answer: Group VII (the element is fluorine) Free Template from www.brainybetty.com

  28. Ionization energies and group numbers The pattern of successive ionisation energies was used to: • Provide evidence for the general pattern of electron shells. • Predict the simple electronic configuration of an element. • Confirm the position of an element in the PTE Free Template from www.brainybetty.com

  29. Ionization energies and group numbers Successive ionisation energies for potassium Potassium is in group 1 Notice the “jump” in energy needed to remove the 2nd electron Free Template from www.brainybetty.com

  30. level 1 level 2 level 3 level 4 Ionization energies and group numbers Successive ionisation energies for potassium The different “jumps” are evidence for the arrangement of electrons in energy levels and sub-levels Free Template from www.brainybetty.com

  31. Ionization energies and group numbers Which group is this element in? Group 4 Notice the “jump” in energy needed to remove the 5th electron Free Template from www.brainybetty.com

  32. Ionization energies and group numbers Which group is this element in? Group 2 Notice the “jump” in energy needed to remove the 3rd electron Free Template from www.brainybetty.com

  33. Ionization energies and group numbers Which group is this element in? Group 3 Notice the “jump” in energy needed to remove the 4th electron Free Template from www.brainybetty.com

  34. Ionization energies and group numbers Which group is this element in? Group 5 Notice the “jump” in energy needed to remove the 6th electron Free Template from www.brainybetty.com

  35. Ionization energies and group numbers Which group is this element in? Group 1 Notice the “jump” in energy needed to remove the 2nd electron Free Template from www.brainybetty.com

  36. End of Presentation Free Template from www.brainybetty.com

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