Study Guide
Using the Periodic Table
Choose each of the following elements with the element in the list that has the most similar chemical properties. Use the periodic table as a guide.
1. cobalt (Co) ________ (Rh, Zn)
2. carbon (C) ________ (Cl, Si)
3. argon (Ar) ________ (He, O)
4. cerium (Ce) ________ (Tb, N)
5. lithium (Li) ________ (Tb, K)
6. aluminum (Al) ________ (In, H)
7. iodine (I) ________ (Al, Cl)
8. copper (Cu) ________ (Ag, Au)
9. manganese (Mn) ________ (Y, Re)
10. niobium (Nb) ________ (V, He)
11. calcium (Ca) ________ (P, Ra)
12. scandium (Sc) ________ (Y, Ag)
13. mercury (Hg) ________ (Fe, Zn)
14. selenium (Se) ________ (O, H)
15. arsenic (As) ________ (P, C)
Answer each of the following questions.
16. The electron configuration of all elements in Group 1 (IA) end in ________________________________________________________.
17. In the electron configuration for the outer energy level of potassium, 4s1, the coefficient 4 indicates the _____________________________________________________________.
18. Atoms with full outer energy levels are very _____________________________________________________________.
19. Elements such as silicon are called metalloids because they have properties of both___________________________________________________________.
20. Elements with three or fewer electrons in the outer energy level are usually ___________________________________________________________.
21. The properties of nonmetals are ____________________________________________________________.
22. The main reason that atoms react with each other is because _____________________________________________________________.
23. To determine an atoms chemical properties you must know _____________________________________________________________.
24. The octet rule consists of _____________________________________________________________.
25. The general positioning of metals and nonmetals in the periodic table is ____________________________________________________________.