Review- The Periodic Table

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1 Review- The Periodic Table Name Date Block Matching: Match the description in with the correct term in. Write the letter in the blank provided. Each term matches with only one description, so be sure to choose the best description for each term. Not all descriptions will be used. G 1. Period F 2. Transition Metal I 3. Valence Electron A 4. Group D_ 5. Alkali Metal A. vertical column of elements B. located in the second column C. ability of an atom to attract electrons D. located in the first column E. energy required to remove an e- from an atom H 6. Halogen F. located in columns 3-12 _C 7. Electronegativity G. horizontal row of elements _B 8. Alkaline Earth Metal H. located in column 17 E 9. Ionization Energy K 10. Noble Gases I. an electron in the outermost shell of an atom J. solid or liquid mixture of two or more metals K. located in column 18 Matching (1 point each): Match the type of element on the periodic table in with the description in. Write the letter in the blank provided. Each term matches with only one description, so be sure to choose the best description for each term. The descriptions may be used more than once. A 11. malleable B 12. brittle A. metal B. nonmetal A 13. conductor A_ 14. ductile B 15. insulator

2 B 16. located to the right of the stair-step A 17. located to the left of the stair-step C 18. located along the stair-step A. metal B. nonmetal C. metalloid B 19. Carbon A 20. Magnesium A 21. Lithium C 22. Silicon B 23. Phosphorous Matching (1 point each): Match the description of the electron configuration rule in with the name of the rule in. Write the correct letter in the blank. Each name matches with only one description and all descriptions will be used. B 24. Pauli Exclusion Principle C 25. Hund s Rule A 26. Aufbau s Principle A. electrons fill lowest energy orbitals first B. max of 2 electrons in an orbital with opposite spin C. spread out electrons across a sublevel before pairing them up Multiple Choice (2 points each): Choose the best answer for each question. Write the letter of the correct answer in the blank provided. A_ 27. Which element has the lowest first ionization energy in Period 3? a. an alkali metal c. a halogen b. an alkaline earth metal d. a noble gas B 28. An element that has both a high ionization energy and a high electronegativity is most likely to be a a. metal c. semimetal b. nonmetal d. noble gas

3 _D 29. Compared to an atom of sodium, an atom of aluminum has a a. larger atomic radius and lower ionization energy b. larger atomic radius and higher ionization energy c. smaller atomic radius and lower ionization energy d. smaller atomic radius and higher ionization energy D 30. Which element is chemically most similar to phosphorus? a. Si c. C b. S d. N B 31. Which element is most likely to form a positive ion? a. O c. P b. K d. Cl A 32. The elements of Period 3 are similar in that they all have the same number of a. occupied principal energy levels b. protons in the nucleus c. 3p electrons d. valence electrons C 33. Which is chemically most similar to calcium? a. K c. Mg b. Sc d. Na D 34. In the periodic table, the metals with the lowest ionization energies are found at or near the a. upper right c. upper left b. lower right d. lower left A 35. Which name is given to the elements in Group 2? a. alkaline earth metals c. semimetals b. alkali metals d. halogens B 36. Where are the halogens found in the periodic table? a. Group 2 c. Period 3 b. Group 17 d. Period 4

4 _A 37. In the periodic table, the nonmetals with the highest electronegativities are found at or near the a. upper right c. upper left b. lower right d. lower left C 38. What is the name given to elements whose atoms have incomplete d sublevels of electrons? a. metallic elements c. transition elements b. nonmetallic elements d. rare-earth elements D 39. Which is a transition element? a. Ca c. As b. I d. Sc Short Answer: Write the electron configuration of the valence electrons for each of the following atoms. 40. Oxygen 41. Potassium 2s 2 2p 4 4s Iron 43. Chlorine 4s 2 3s 2 3p Beryllium 45. Mercury 2s 2 6s 2

5 Answer the following questions as fully as you can. You can use diagrams if necessary to explain. You do not have to answer in complete sentences, but your explanation must make sense and be complete. (4 points each) 46. What is the periodic trend for increasing atomic size on the periodic table? How do we measure atomic size? Why does this trend occur? 47. What is the periodic trend for increasing ionization energy on the periodic table? What is ionization energy? Why does this trend occur? 48. What is the periodic trend for increasing electronegativity on the periodic table? What is electronegativity? Why does this trend occur?

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