Electron Configuration & Periodic Trend REVIEW!
1. Which sublevels exist for energy level 3? 1s2s3s 3s3p 3s3p3d 3s3p3d3f 3p3d3f
2. What is the shape electrons take in an s orbital? spherical dumbbell 4 leaf clover Multi-lobed square
3. How many electrons fit in an orbital? 1 2 3 5 7
4. How many orbitals in a p sublevel? 1 2 3 5 7
5. How many orbitals in an s sublevel? 1 2 3 5 7
6. How many orbitals in an f sublevel? 1 2 3 5 7
7. How many orbitals in a d sublevel? 1 2 3 5 7
8. In an orbital diagram of nitrogen, the 2p sublevel should look like what? ____ ____ ____
9. What is the electron configuration for silicon? 1s22s22p63s4 1s22s22p63s23p4 1s22s22p63s23p2 1s22s22p63p4 1s22s22p63s24p2
10. What is the electron configuration for oxygen? 2s22p4 1s22s22p23s2 1s22s42p4 1s22s22p4 1s22s6
11. What is the electron configuration for aluminum? 1s22s22p9 1s22s22p83p1 1s22s22p63p5 1s22s22p63p3 1s22s22p63s23p1
12. For the next several questions, match the final notation in the electron configuration to the correct element: 4p3 As N Rb Xe Na
13. For the next several questions, match the final notation in the electron configuration to the correct element: 3s1 As N Rb Xe Na
14. For the next several questions, match the final notation in the electron configuration to the correct element: 5s1 As N Rb Xe Na
15. For the next several questions, match the final notation in the electron configuration to the correct element: 5p6 As N Rb Xe Na
16. The element that has a configuration that ends with 5p2 Sr Sn Ge Pb Ti
17. The element that has an abbreviated configuration of [Ar]4s23d6 Cr Ca Fe Zn Kr
18. The element that begins filling the 6s sublevel? Sc Rb Ba Cs
19. The number of electrons in the 5p sublevel of iodine? 2 7 3 15 5
20. The number of valence electrons gallium? 1 13 2 31 3
21. The atomic radius of oxygen is larger than that of… lithium boron sulfur argon fluorine
22. Of C, Si, Ge, Sn, and Pb, which element has the greatest ionization energy?
23. Of Ca, Cu, Ga, Se, and Br, which element is least electronegative?
What are the trends? AR=___ IE = ____ EN= _____
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