1. Electron Jeopardy

2. Admit Slip Identify the element with this electron configuration: 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1 What element is this? How many total electrons does an atom of this element have? How many valence electrons does it have? How many core electrons?

3. Objective: Students will be able to: write and identify electron configurations. Identify total, valence, and core electrons. Agenda: Admit slip Electron Jeopardy Homework: ExiT slip Study for tomorrow’s quiz

4. Game Rules Each group will get the chance to answer each question. You don’t need to “buzz in first.” Group members must come to a consensus before giving an answer. Answers must be written down. A different person in the group should read the answer each round. Groups will receive points for correct answers and up to 400 points for Participation. You may get partial credit on some answers. The winning group will receive either points or candy – each person can choose for themselves..

5. 200 Points How many electrons does Gold, Au have? 79 electrons

6. 200 Points Which element has 50 electrons? Tin, Sn

7. 400 Points Valence electrons are: (Write your own definition) The electrons from the outermost shell (highest energy level / highest shell number)

8. 400 Points Core electrons are: (Write your own definition) All the electrons that are not valence electrons. The electrons that are not on the outermost shell. The electrons on the inner shells.

9. 400 Points How many valence electrons: Do each of the halogens have? Do each of the noble gases have? Halogens have 7 valence electrons Noble gases have 8 valence electrons

10. 400 Points How many valence electrons: Do each of the alkali metals have? Do each of the alkaline earth metals have? Alkali metals have 1 valence electron Alkaline earth metals have 2 valence electrons

11. 400 Points Gallium, Ga has how many: Total electrons? Valence electrons? Core electrons? 31 total electrons 3 valence electrons 28 core electrons

12. 400 Points Lead, Pb has how many: Total electrons? Valence electrons? Core electrons? 82 total electrons 4 valence electrons 78 core electrons

13. 400 Points Name an element with 6 valence electrons. Oxygen, Sulfur, Selenium, Tellurium, or Polonium

14. 200 Points Name the subshells that make up the 4 th shell. 4s4p4d4f

15. 200 Points Name two elements whose last electrons are placed in the 3p subshell. Aluminum, Silicon, Phosphorous, Sulfur, Chlorine, and Argon.

16. 200 Points Name two elements whose last electrons are placed in the 4d subshell. (you may give the symbols instead of the name) Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd.

17. 200 Points Which element is represented by this electron configuration? 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 9 Copper, Cu

18. 200 Points Which element is represented by this electron configuration? 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 5 Iodine, I

19. 400 Points Write the full electron configuration for Vanadium, V. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 3

20. 400 Points Write the full electron configuration for Barium, Ba (it’s near the bottom) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2

21. 400 Points Write the noble gas electron configuration for Selenium, Se. [Ar]4s 2 3d 10 4p 4

22. 400 Points Write the noble gas electron configuration for Indium, In (it’s near the bottom) [Kr]5s 2 4d 10 5p 1

23. 600 Points What element is represented by this noble gas electron configuration?[Ar]4s 2 3d 10 4p 5 How many valence electrons does this element have? Identify these valence electrons. Bromine, Br 7 valence electrons 4s 2 4p 5

24. 600 Points What element is represented by this noble gas electron configuration?[Kr]5s 2 4d 10 5p 4 How many valence electrons does this element have? Name the subshells that hold these valence electrons. Tellurium, Te 6 valence electrons 5s 2 5p 4

25. 600 Points Write the noble gas electron configuration for Gallium, Ga. How many valence electrons does Ga have? Identify these valence electrons. [Ar]4s 2 3d 10 4p 1 3 valence electrons 4s 2 4p 1

26. Final Jeopardy Decide within your group how many points to wager for this question.

27. Final Jeopardy Write the noble gas electron configuration for Bismuth, Bi. How many total, valence, and core electrons does Bismuth have? Identify these valence electrons. [Xe]6s 2 4f 14 5d 10 6p 3 83 total electrons, 5 valence electrons, 78 core electrons 6s 2 6p 3