1. Electron Configuration & Periodic Trend REVIEW!

2. 1. Which sublevels exist for energy level 3?
1s2s3s
3s3p
3s3p3d
3s3p3d3f
3p3d3f

3. 2. What is the shape electrons take in an s orbital?
spherical
dumbbell
4 leaf clover
Multi-lobed
square

4. 3. How many electrons fit in an orbital?1 2 3 5 7

5. 4. How many orbitals in a p sublevel?1 2 3 5 7

6. 5. How many orbitals in an s sublevel?1 2 3 5 7

7. 6. How many orbitals in an f sublevel?1 2 3 5 7

8. 7. How many orbitals in a d sublevel?1 2 3 5 7

9. 8. In an orbital diagram of nitrogen, the 2p sublevel should look like what?
____ ____ ____

10. 9. What is the electron configuration for silicon?
1s22s22p63s4
1s22s22p63s23p4
1s22s22p63s23p2
1s22s22p63p4
1s22s22p63s24p2

11. 10. What is the electron configuration for oxygen?
2s22p4
1s22s22p23s2
1s22s42p4
1s22s22p4
1s22s6

12. 11. What is the electron configuration for aluminum?
1s22s22p9
1s22s22p83p1
1s22s22p63p5
1s22s22p63p3
1s22s22p63s23p1

13. 12. For the next several questions, match the final notation in the electron configuration to the correct element: 4p3 As N Rb Xe Na

14. 13. For the next several questions, match the final notation in the electron configuration to the correct element: 3s1 As N Rb Xe Na

15. 14. For the next several questions, match the final notation in the electron configuration to the correct element: 5s1 As N Rb Xe Na

16. 15. For the next several questions, match the final notation in the electron configuration to the correct element: 5p6 As N Rb Xe Na

17. 16. The element that has a configuration that ends with 5p2Sr Sn Ge Pb Ti

18. 17. The element that has an abbreviated configuration of [Ar]4s23d6Cr Ca Fe Zn Kr

19. 18. The element that begins filling the 6s sublevel?Sc Rb Ba Cs

20. 19. The number of electrons in the 5p sublevel of iodine?2 7 3 15 5

21. 20. The number of valence electrons gallium?1 13 2 31 3

22. 21. The atomic radius of oxygen is larger than that of…
lithium
boron
sulfur
argon
fluorine

23. 22. Of C, Si, Ge, Sn, and Pb, which element has the greatest ionization energy?

24. 23. Of Ca, Cu, Ga, Se, and Br, which element is least electronegative?

25. What are the trends? AR=___ IE = ____ EN= _____

26. Answer Key 1 C 6 E 11 E 16 B 21 E 2 A 7 D 12 A 17 C 22 A 3 B 8 B 13 E
Small, high, high
5 A
10 D
15 D
20 E
Big, low, low