Period Table

1. Period Table

2. 2. Which group contains elements with a total of 4 valence electrons? • Alkali Metals • Group 14 • Any transition element • Noble Gases • Any element in period 4

3. 3. Which of the following are both halogens that are gases at STP? • Chlorine and bromine • Krypton and argon • Nitrogen and oxygen • Chlorine and fluorine • Fluorine and neon

4. Refer to the following periodic table to answer questions 5 thru 7.

5. 5. Which element has properties of both metals and nonmetals? • A • B • C • D • E

6. 6. Which element is the most reactive metal? • A • B • C • D • E

7. 7. Which element exists as a monatomic gas at STP? • A • B • C • D • E

8. 8. At STP, potassium is classified as a(n): • Solid halogen • Liquid metal • Solid metal • Liquid metalloid • Transition element

9. 9. Which element in Group 17 is the most active nonmetal? • I • Cl • Br • F • At

10. 10. At which location on the periodic table would the most active metallic element be found? • In Group 1 at the bottom • In Group 17 at the bottom • In Group 1 at the top • In group 17 at the top • Any of the Rare Earth Elements

11. 11. As the elements in Group 1 are considered in order of increasing atomic number, the atomic radius of each successive elements: • Increases • Decreases • Remains the same • Cannot be predicted

12. 12. As the elements in Period 2 are considered in succession from left to right, there is a general increase in: • Boiling point • Radius • Reactivity • Metallic character • Nonmetallic character

13. 13. Which element is classified as a chalcogen AND a metalloid? • P • Te • Si • At • B

14. 14. The element found in Group 13 and Period 2 is: • Al • Mg • Be • B • Zn

15. 15. Compared to a neon atom, a helium atom has a: • Equal number of electrons • Larger atomic number • Smaller radius • Greater number of protons • Greater atomic mass

16. 16. Which compound contains an alkali metal and a halogen? • CaCl2 • Rb2S • RbCl • CaS • CuS

17. 17. What group in the Periodic Table contains the elements of the alkaline earth family? • 1 • 2 • 3-12 • 14 • 15

18. 18. Which of the following periods contain transition elements? • 1 • 2 • 3 • 4 • None of the above

19. 19. Which atom has the smallest atomic radius? • Be • C • Li • F • Rn

20. 20. Which Period 3 element has the least metallic character? • Al • Mg • Si • Na • Sc

21. 21. Which two elements have chemical properties that are most similar? • C and N • K and Ca • Cl and Ar • Li and Na • 1, 2 and 3 are ALL correct b/c each of these sets of elements are in the same period

22. 22. Based on the Periodic Table of Elements, which Group 2 element is most active? • Be • Ca • Ba • Sr • Ra

23. 23. Which element has properties of electrical conductivity and exists as a liquid at STP? • Hg • I • Br • Rn • Fr

24. 24. Which element is an active nonmetal? • Chromium • Zinc • Neon • Oxygen • Lithium

25. 25. The properties of silicon are characteristic of: • Neither a metal nor a nonmetal • A nonmetal, only • A metal, only • Both a metal and a nonmetal • All the other elements in Period 3

26. 26. Which of the following is the atomic number of a rare earth element? • 58 • 45 • 20 • 18 • 86

27. 27. The elements in period 3 all have the same number of: • Protons • Main energy levels • Valence electrons • Neutrons • Neutrons and electrons

28. 28. In the modern Periodic Table, the elements are arranged according to: • Atomic mass • Mass number • Atomic number • Number of neutrons • All of the above

29. 29. Which element’s atoms have a larger atomic radius than atoms of silicon? • Sodium • Chlorine • Sulfur • Carbon • Oxygen

30. 30. Which group contains elements with the greatest variation in chemical properties? • Be, Mg, Ca • Li, Be, B • Li, Na, K • B, Al, Ga • Ar, Kr, Xe

31. 31. Which element forms a diatomic molecule? • Carbon • Bromine • Helium • Iron • Sodium

32. 32. Alkali metals, alkaline earth metals, and halogens are found respectively in Groups: • 1, 2 and 14 • 1, 2 and 17 • 2, 13 and 17 • 1, 2, and 18 • 16, 17, and 18

33. 33. How many noble gases are found in Period 1 of the Periodic Table? • 0 • 1 • 2 • 3 • 4

34. 34. Which element in Group 16 would most likely have the best electrical conductivity? • O • S • Se • Te • Po

35. 35. In the Periodic Table of the Elements, all the elements within Group 16 have the same number of: • Main energy levels • Protons • Valence electrons • Neutrons • All of the above

36. 36. The atomic mass unit (amu) was based on an atom of: • Nitrogen-14 • Oxygen • Tritium • Carbon-12 • None of the above

37. 37. An atom contains 20 protons, 20 neutrons, and 20 electrons. The atomic number of this element is: • 20 • 40 • 60 • 10 • None of the above

38. 38. Chalcogens have ___ valence electrons. • 14 • 3 • 6 • 10 • 16

39. 39. Titanium is found in the ___-block in the Periodic Table. • s • p • d • f • g

40. 40. s-block elements have from ___ to ___ valence electrons. • 13-18 • 1-2 • 3-12 • 3-8 • 10-20

41. 41. Which of the following represents a valence electron in the p-block? • A • B • C • D • None of the above

42. 42. What is the mass number of an element with 26 protons, 15 nuetrons,and 26 electrons? • 26 • 15 • 41 • 52 • 11

43. 43. An element has a mass number of 84 and 35 electrons. What is the atomic number of this element? • 119 • 35 • 84 • 168 • 70

44. 44. The following ‘onion model’ shows that this atom and is in period___ Group ___ of the Periodic Table. • 5, 3 • 3, 4 • 4, 3 • 3, 14 • 14, 5