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Electrons

Electrons. e - are found in discreet “energy levels” or “shells”. Electrons. 1 st shell . 2 nd shell . 3 rd shell . 4 th shell . 5 th shell . 6 th shell . 7 th shell . Electrons. e - are found in discreet “energy levels” or “shells”

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Electrons

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  1. Electrons • e- are found in discreet “energy levels” or “shells”

  2. Electrons 1st shell  2nd shell  3rd shell  4th shell  5th shell  6th shell  7th shell 

  3. Electrons • e- are found in discreet “energy levels” or “shells” • Within these electron shells are electron subshells • Subshells are named s, p, d, and f • number of possible subshells is equal to shell number 1st shell  1 sub-shell (s) 2nd shell  2 sub-shells (s, p) 3rd shell  3 sub-shells (s, p, d) 4th shell  4 sub-shells (s, p, d, f)

  4. s-block

  5. p-block

  6. d-block

  7. f-block

  8. Electron Sub-Shells

  9. Did it Stick? What are the letters that represent the electron subshells within the atom? s p d f 2 6 10 14 What is the max number of e- that fit in each subshell? Which subshell(s) are possible in the third energy level (n = 3)?

  10. Electron Configuration

  11. Find the “home address” of the last electron in the element. Nitrogen is in the 2nd shell Nitrogen Electron Configuration 1st shell  2nd shell  3rd shell  4th shell  5th shell  6th shell  7th shell 

  12. Find the “home address” of the last electron in the element. Nitrogen is in the 2nd shell, is in the p sub-shell Nitrogen is in the 2ndshell Electron Configuration

  13. Find the “home address” of the last electron in the element. Nitrogen is in the 2nd shell, is in the p sub-shell, and is the 3rd element in the p-block Nitrogen is in the 2nd shell, is in the psub-shell Electron Configuration 2 p 3

  14. 2 p 3 Find the “home address” of the last electron in the element. Nitrogen is in the 2nd shell, is in the p sub-shell, and is the 3rd element in the p-block Electron Configuration 2p3 is the “home address” for the last electron in nitrogen

  15. Find the “home address” of the last electron in the element. Iodine Iodine is in the 5th shell Electron Configuration 1st shell  2nd shell  3rd shell  4th shell  5th shell  6th shell  7th shell 

  16. Find the “home address” of the last electron in the element. Iodine is in the 5th shell, is in the p sub-shell Iodine is in the 5thshell Electron Configuration

  17. Find the “home address” of the last electron in the element. Iodine is in the 5th shell, is in the psub-shell Iodine is in the 5th shell, is in the p sub-shell, and is the 5th element in the p-block Electron Configuration 5 p 5

  18. 5 p 5 Find the “home address” of the last electron in the element. Iodine is in the 5th shell, is in the p sub-shell, and is the 5th element in the p-block Electron Configuration 5p5 is the “home address” for the last electron in iodine

  19. Find the “home address” of the last electron in the element. Potassium Potassium is in the 4th shell Electron Configuration 1st shell  2nd shell  3rd shell  4th shell  5th shell  6th shell  7th shell 

  20. Find the “home address” of the last electron in the element. Potassium is in the 4th shell, is in the s sub-shell Potassium is in the 4thshell Electron Configuration

  21. Find the “home address” of the last electron in the element. Potassium is in the 4th shell, is in the s sub-shell, and is the 1st element in the s-block Potassium is in the 4th shell, is in the ssub-shell Electron Configuration 4 s 1

  22. 4 s 1 Find the “home address” of the last electron in the element. Potassium is in the 4th shell, is in the s sub-shell, and is the 1st element in the s-block Electron Configuration 4s1 is the “home address” for the last electron in potassium

  23. To get the total electron configuration, starting with 1s, work your way from left to right across the periodic table, filling all of the sub-shells you run into until you get to the “home address”. Electron Configuration 2p3 is the “home address” for the last electron in nitrogen 1s2 2s2 1s2 2s2 2p3 1s2  electron configuration

  24. To get the total electron configuration, starting with 1s, work your way from left to right across the periodic table, filling all of the sub-shells you run into until you get to the “home address”. Electron Configuration 4s1 is the “home address” for the last electron in potassium 1s2 2s2 2p6 3s2 3p6 4s1 1s2 2s2 1s2 2s2 2p6 1s2 2s2 2p6 3s2 1s2 2s2 2p6 3s2 3p6 1s2  electron configuration

  25. Electron Configuration Practice!! Give the electron configuration for the following: Ar (argon) : 1s2 2s2 2p6 3s2 3p64s1 1s22s2 2p6 3s2 3p64s1 1s2 2s22p6 3s2 3p64s1 1s2 2s2 2p6 3s2 3p64s1 1s2 2s2 2p6 3s2 3p6 4s1 Ca (calcium) : 1s22s2 2p6 3s2 3p6 4s2 1s22s22p6 3s2 3p6 4s2 1s2 2s22p6 3s2 3p6 4s2 1s2 2s2 2p6 3s2 3p64s2 1s2 2s2 2p6 3s2 3p6 4s2 1s2 2s2 2p6 3s2 3p6 4s2

  26. Electron Configuration Shell # Sub-shell 1s 2p 1 s 2 s, p 3d 3 s, p, d 4 s, p, d, f 4f

  27. 1 s

  28. 1 s 2 s 2 p

  29. 3 d 3 p 1 s 2 s 2 p 3 s 3 p 3 d

  30. 3 d 4 s 3 p 1 s 2 s 2 p 3 s 3 p 3 d 4 s 4 p 4 d 4 f

  31. To get the total electron configuration, starting with 1s, work your way from left to right across the periodic table, filling all of the sub-shells you run into until you get to the “home address”. Electron Configuration 3d6 is the “home address” for the last electron in iron 1s2 2s2 2p6 3s2 3p6 4s2 1s2 2s2 1s2 2s2 2p6 1s2 2s2 2p6 3s2 1s2 2s2 2p6 3s2 3p6 1s2 2s2 2p6 3s2 3p6 4s2 3d6 1s2  electron configuration (almost)  electron configuration

  32. 1s2 2s2 2p6 3s2 3p6 4s2 3d6  electron configuration (almost) Rewrite so that the shells are in order (1, 2, 3, …) and so that the sub-shells are in order (s, p, d, f) Electron Configuration “all” the 1 sub-levels together 1s2 all the 2 sub-levels together 1s22s2 2p6 all the 3 sub-levels together 1s2 2s2 2p6 3s2 3p6 3d6 all the 4 sub-levels together 1s2 2s2 2p6 3s2 3p6 3d6 4s2 1s2 2s2 2p6 3s2 3p6 3d6 4s2  electron configuration

  33. To get the total electron configuration, starting with 1s, work your way from left to right across the periodic table, filling all of the sub-shells you run into until you get to the “home address”. Electron Configuration 5p5 is the “home address” for the outermost electron in iodine 1s2 2s2 2p6 3s2 1s2 2s2 1s2 2s2 2p6 3s2 3p6 4s2 1s2 2s2 2p6 3s2 3p6 4s2 3d10 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 1s2 2s2 2p6 1s2 2s2 2p6 3s2 3p6 1s2 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p5 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2

  34. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p5  e- c. (almost) Rewrite so that the shells are in order (1, 2, 3, …) and so that the sub-shells are in order (s, p, d, f) Electron Configuration “all” the 1 sub-levels 1s2 all the 2 sub-levels 1s22s2 2p6 all the 3 sub-levels 1s2 2s2 2p6 3s2 3p6 3d10 all the 4 sub-levels 1s2 2s2 2p6 3s2 3p6 3d10 4s24p64d10 all the 5 sub-levels 1s2 2s2 2p6 3s2 3p6 3d104s24p64d10 5s25p5 1s2 2s2 2p6 3s2 3p6 3d104s24p64d10 5s25p5  e- c.

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