8Th Grade Science Topic H Review: Periodic Table

8th Grade Science Topic H Review: Periodic Table

Multiple Choice Identify the choice that best completes the statement or answers the question.

____ 1. Position of the elements on the periodic table: a. allows us to make predictions about their properties. b. are determined by atomic mass. c. are in order of their discovery. d. all of the above are true. ____ 2. Demetri Mendeleev, a Russian scientist, established the first really useful periodic table. His table was much more useful than others before it because: a. it left gaps where undiscovered elements should be. b. it had 11 groups. c. he came up with the idea before anyone else. d. all of the above are true. ____ 3. Mendeleev predicted the discovery of a new element in the same group as carbon and silicon, but smaller and less massive than tin or lead. What was that element? a. Selenium b. Germanium c. Cadmium d. Geriatric ____ 4. Vertical (up and down) columns on the periodic table are called: a. Periods b. Groups c. Rows d. All the above ___ 5. Horizontal (left to right) rows on the periodic table are called: a. Periods b. Groups c. Columns d. All the above ___ 6. Group 1 (Ia) elements have a special name. They are called: a. Alkali Metals b. Alkaline Earth c. Halogens d. Noble Gasses Metals ____ 7. Group 2 (IIa) elements have a special name. They are called: a. Alkali Metals b. Alkaline Earth c. Halogens d. Noble Gasses Metals ____ 8. Group I elements share certain properties. These include: a. Silvery in color b. Very malleable c. very reactive to d. All the above water ___ 9. Group I elements include: a. .Lithium b. Sodium c. Potassium d. all the above ____ 10. Group II elements include: a. Beryllium b. Magnesium c. Calcium d. all the above ____ 11. Group II elements include: a. Lithium b. Sodium c. Magnesium d. Chlorine ____ 12. Group I elements share certain properties, including being very reactive to water. However, the smaller elements in group I are more reactive than the bigger ones. Which reacted more violently and energetically with water? a. Potassium b. Sodium c. Rubidium d. Cesium ____ 13. Groups 3-12 (Ib-VIIIb) elements include most of the metals we think of when we think of what metals are. However, they are not as predictable as group I and II metals. What do we call the elements in groups III-XII? a. Alkali Metals b. Halogens c. Transition metals d. Alloys ____ 14. Groups 13-16 (IIIa - VIa) elements are split in a stairstep pattern between the “other metals” and the: a. Alkali metals b. Alkaline earth metalsc. Non-metals d. Transition metals ____ 15. Groups 13-16 (IIIa - VIa) elements are split in a stair step pattern. Elements along this stair step line are called: a. Alkali metals b. Alkaline earth metalsc. Metalloids d. Transition metals ____ 16. Group 17 (VIIa) elements are called: a. Alkali metals b. Noble Gasses c. Halogens d. Transition metals ____ 17. Group 17 (VIIa) elements include: a. Oxygen b. Nitrogen c. Chlorine d. All the above ____ 18. Group 17 (VIIa) elements include: a. Fluorine b. Iodine c. Chlorine d. All the above ____ 19. Group 18 (VIIIa) elements include: a. Helium b. Krypton c. Neon d. All the above ____ 20. Group 18 (VIIIa) elements include: a. Hydrogen b. Argon c. Nitrogen d. All the above ____ 21. Group VIIIa (group 18) elements are called: a. Alkali metals b. Noble gasses c. Halogens d. All the above ____ 22. Group 17 (VIIa) elements share many of the same properties, like other groups. These properties include: a. Form salts b. Non-metals c. Corrosive d. All of these ____ 23. Group VIIIa (group 18) elements share many of the same properties, like other groups. These properties include: a. Form gasses b. Non-metallic c. Unreactive d. All of these ____ 24. Group VIIIa (group 18) elements share many of the same properties, like other groups. These properties include: a. Form gasses at room temperature c. Generally do not react chemically b. Colorless, odorless and tasteless d. All of these ____ 25. Group 18 (VIIIa) elements share many of the same properties, like other groups. These properties include: a. Form alloys b. metallic c. Unreactive d. All of these

____ 26. A periodic table notation for nitrogen is shown above. An atom of nitrogen has how many electrons? a. 7 b. 8 c. 14 d. 14.01 ____ 27. The noble gases, such as helium and xenon, are non-reactive because: a. they have completely filled outer electron shells. b. they are chemically unstable. c. they are unusually large atoms. d. they are in the same family as Krypton, which can kill even Superman. ____ 28. The noble gases, such as argon and xenon, are non-reactive because: a. they are chemically stable. B. they have 8 valence electrons. c. they are at the end of a period. D. All of these ____ 29. Chlorine, element number 17, is located in the third row and the next-to-the-last group of the periodic table. How many electron shells would be completely filled by a neutral atom of chlorine? How many electrons would be left over? a. 1 shell filled, 7 electrons left over c. 2 shells filled, 7 electrons left over b. 1 shell filled, 1 electron left over d. 2 shells filled, 1 electron left over ____ 30. Fluorine, element number 9, is located in the second row and the next-to-the-last group of the periodic table. How many electron shells would be completely filled by a neutral atom of flourine? How many electrons would be left over? a. 1 shell filled, 7 electrons left over c. 2 shells filled, 7 electrons left over b. 1 shell filled, 1 electron left over d. 2 shells filled, 1 electron left over

____ 31. How many energy levels are filled in a krypton atom? a. Three. b. Four. c. Five. d. Six. ____ 32. Elements in the same column on the periodic table have similar chemical reactivity because: a. they contain similar amounts of energy. b. they have the same number of valence shell electrons. c. atoms prefer to have completely full or completely empty valence shells. d. they have similar numbers of isotopes. ____ 33. When Mendeleev published his periodic table, there were some spaces for undiscovered elements. Figure 3-1 is a section of a similar table. A reasonable value for the atomic mass of the missing element is ____.

a. 101 b. 72.3 c. 68.2 d. 34.8 ____ 34. When Mendeleev made his arrangement of the elements in a table, he found that elements with ____ fell into groups on the table. a. the same mass c. similar properties b. similar size d. the same color ____ 35. Every element has its own atomic number. The atomic number is the number of ____ in the nucleus of an atom of the element. a. electrons c. positrons b. neutrons d. protons ____ 36. In the modern periodic table, elements are arranged according to increasing ____. a. atomic number c. date of discovery b. atomic mass d. electrical conductivity ____ 37. Elements in the ____ group are often used in disinfectants and cleaners. a. halogen c. carbon b. actinide d. platinum ____ 38. Which of the following elements is most similar to carbon? a. Boron c. Nitrogen b. Dioxide d. silicon ____ 39. Comparing metals to non-metals in the same period, metals tend to have: a. Lower atomic mass c. More neutrons b. More electrons d. Be more reactive

____ 40. ____ conducts electricity when exposed to light, so it is used in solar cells and in light meters. a. Bromine c. Selenium b. Boron d. Sulfur

____ 41. Which of the following traits do elements I and II have in common? a. Atomic number b. Atomic mass c. Energy levels d. Valence electrons

___ 42. Matching Match each item with the correct description below. a. alkali metals d. metal b. actinides e. halogens c. periodic table f. krypton and xenon ____ 43. any malleable element that is a good conductor of electricity ____ 44. an organization of elements by the number of protons in each ____ 45. noble gases Using a periodic table, place each of the following elements in one of the following categories. a. metal d. nonmetal b. transition metal e. metalloid c. transition metal ____ 46. B, boron, 5 ____ 47. I, iodine, 53 ____ 48. Ba, barium, 56 ____ 49. C, carbon, 6 ____ 50. Na, sodium, 11 8th Grade Science Topic H Review: Periodic Table Answer Section

1. ANS: A STA: TEKS 8.5C MSC: periodic table video 2. ANS: A STA: TEKS 8.5C MSC: periodic table video 3. ANS: B STA: TEKS 8.5C MSC: periodic table video 4. ANS: B : TEKS 8.5C MSC: periodic table video 5. ANS: A STA: TEKS 8.5C MSC: periodic table video 6. ANS: A STA: TEKS 8.5C MSC: periodic table video 7. ANS: B STA: TEKS 8.5C MSC: periodic table video 8. ANS: D STA: TEKS 8.5C MSC: periodic table video 9. ANS: D STA: TEKS 8.5C MSC: periodic table video 10. ANS: D STA: TEKS 8.5C MSC: periodic table video NOTE: group II 11. ANS: C STA: 8.5C MSC: periodic table video 12. ANS: D STA: 8.5C MSC: periodic table video 13. ANS: C STA: 8.5C MSC: periodic table video 14. ANS: C STA: 8.5C MSC: periodic table video 15. ANS: C STA: 8.5C MSC: periodic table video 16. ANS: C STA: 8.5C MSC: periodic table video 17. ANS: C STA: 8.5C MSC: periodic table video 18. ANS: D STA: 8.5C MSC: periodic table video 19. ANS: D STA: 8.5C MSC: periodic table video 20. ANS: B STA: 8.5C MSC: periodic table video 21. ANS: B STA: 8.5C MSC: periodic table video 22. ANS: D STA: 8.5C MSC: periodic table video 23. ANS: D STA: 8.5C MSC: periodic table video 24. ANS: D STA: 8.5C MSC: periodic table video 25. ANS: C STA: 8.5C MSC: periodic table video 26. ANS: A STA: 8.5C 27. ANS: A STA: 8.5C 28. ANS: D STA: 8.5C 29. ANS: C STA: 8.5C 30. ANS: A STA: 8.5C 31. ANS: B STA: 8.5C 32. ANS: B STA: 8.5C 33. ANS: B STA: 8.5C 34. ANS: C STA: 8.5C 35. ANS: D STA: 8.5C 36. ANS: A STA: 8.5C 37. ANS: A STA: 8.5C 38. ANS: D STA: 8.5C 39. ANS: A STA: 8.5C 40. ANS: C STA: 8.5C 41. ANS: C STA: 8.5C 42. ANS: D STA: 8.5C MATCHING 43. ANS: D

44. ANS: C 45. ANS: F 46. ANS: E 47. ANS: D 48. ANS: A 49. ANS: D 50. ANS: A