1. © 2015 Pearson Education, Inc. Clicker Questions Chapter 7 Barbara Mowery York College

2. © 2015 Pearson Education, Inc. The first Periodic Table was created by a.Amadeo Avogadro. b.Dmitri Mendeleev. c.Henry Moseley. d.Ernest Rutherford.

3. © 2015 Pearson Education, Inc. The first Periodic Table was created by a.Amadeo Avogadro. b.Dmitri Mendeleev. c.Henry Moseley. d.Ernest Rutherford.

4. © 2015 Pearson Education, Inc. The effective nuclear charge felt by an atom’s valence electrons (X) going from left to right and (Y) going down a column on the periodic table. a.X = increases Y = increases b.X = increases Y = decreases c.X = decreases Y = increases d.X = decreases Y = decreases

5. © 2015 Pearson Education, Inc. The effective nuclear charge felt by an atom’s valence electrons (X) going from left to right and (Y) going down a column on the periodic table. a.X = increases Y = increases b.X = increases Y = decreases c.X = decreases Y = increases d.X = decreases Y = decreases

6. © 2015 Pearson Education, Inc. True or False: The large number of valence electrons in a chlorine atom greatly reduces the effective nuclear charge of the atom. a.True b.False

7. © 2015 Pearson Education, Inc. True or False: The large number of valence electrons in a chlorine atom greatly reduces the effective nuclear charge of the atom. a.True b.False

8. © 2015 Pearson Education, Inc. The atom with the smallest atomic radius is a.Ca. b.Cr. c.Co. d.Br.

9. © 2015 Pearson Education, Inc. The atom with the smallest atomic radius is a.Ca. b.Cr. c.Co. d.Br.

10. © 2015 Pearson Education, Inc. The correct order of increasing atomic radius (smallest  largest) is a.Na < Mg < K < Rb. b.Mg < Na < K < Rb. c.Rb < K < Na < Mg. d.Rb < K < Mg < Na.

11. © 2015 Pearson Education, Inc. The correct order of increasing atomic radius (smallest  largest) is a.Na < Mg < K < Rb. b.Mg < Na < K < Rb. c.Rb < K < Na < Mg. d.Rb < K < Mg < Na.

12. © 2015 Pearson Education, Inc. The shortest distance between the nuclei of two identical atoms when they collide is called the ___ radius. a.anionic b.cationic c.effective d.van der Waals

13. © 2015 Pearson Education, Inc. The shortest distance between the nuclei of two identical atoms when they collide is called the ___ radius. a.anionic b.cationic c.effective d.van der Waals

14. © 2015 Pearson Education, Inc. The statements below refer to ionic radii. Which statement is FALSE? a.Br 1– is larger than Cl 1–. b.Se 2– is larger than Br 1–. c.K 1+ is larger than Ca 2+. d.Na 1+ is larger than K 1+.

15. © 2015 Pearson Education, Inc. The statements below refer to ionic radii. Which statement is FALSE? a.Br 1– is larger than Cl 1–. b.Se 2– is larger than Br 1–. c.K 1+ is larger than Ca 2+. d.Na 1+ is larger than K 1+.

16. © 2015 Pearson Education, Inc. Two ions are isoelectronic if they have the same a.charge. b.number of protons. c.number of electrons. d.number of neutrons.

17. © 2015 Pearson Education, Inc. Two ions are isoelectronic if they have the same a.charge. b.number of protons. c.number of electrons. d.number of neutrons.

18. © 2015 Pearson Education, Inc. Which set represents an isoelectronic series? a.Ne, Ar, Kr, Xe b.Al, Si; Ge, As; Sb, Te c.Se 2−, Br −, Rb +, Sr 2+ d.Cu 2+, Ag +, Au

19. © 2015 Pearson Education, Inc. Which set represents an isoelectronic series? a.Ne, Ar, Kr, Xe b.Al, Si; Ge, As; Sb, Te c.Se 2−, Br −, Rb +, Sr 2+ d.Cu 2+, Ag +, Au

20. © 2015 Pearson Education, Inc. When a main-group metal ion loses an electron to form a cation, the ionic radius is ___ the atomic radius. a.greater than b.less than c.the same as d.impossible to predict in relation to

21. © 2015 Pearson Education, Inc. When a main-group metal ion loses an electron to form a cation, the ionic radius is ___ the atomic radius. a.greater than b.less than c.the same as d.impossible to predict in relation to

22. © 2015 Pearson Education, Inc. The minimum energy needed to remove an electron from an atom in its ground state is called the atom’s a.potential energy. b.activation energy. c.electron affinity. d.ionization energy.

23. © 2015 Pearson Education, Inc. The minimum energy needed to remove an electron from an atom in its ground state is called the atom’s a.potential energy. b.activation energy. c.electron affinity. d.ionization energy.

24. © 2015 Pearson Education, Inc. The energy change that occurs when an electron is added to an atom is called the atom’s a.potential energy. b.activation energy. c.electron affinity. d.ionization energy.

25. © 2015 Pearson Education, Inc. The energy change that occurs when an electron is added to an atom is called the atom’s a.potential energy. b.activation energy. c.electron affinity. d.ionization energy.

26. © 2015 Pearson Education, Inc. The correct order of increasing first ionization energy (smallest  largest) is a.Na < Ca < Al < Sn. b.Na < Al < Ca < Sn. c.Na < Al < Sn < Ca. d.Ca < Na < Sn < Al.

27. © 2015 Pearson Education, Inc. The correct order of increasing first ionization energy (smallest  largest) is a.Na < Ca < Al < Sn. b.Na < Al < Ca < Sn. c.Na < Al < Sn < Ca. d.Ca < Na < Sn < Al.

28. © 2015 Pearson Education, Inc. The atom with successive ionization energies of 578, 1817, 2745, and 11,577 kJ/mol is a.Al. b.Na. c.Mg. d.P.

29. © 2015 Pearson Education, Inc. The atom with successive ionization energies of 578, 1817, 2745, and 11,577 kJ/mol is a.Al. b.Na. c.Mg. d.P.

30. © 2015 Pearson Education, Inc. The correct order of increasing electron affinity (most negative  least negative) is a.O < Cl < B < C. b.O < Cl < C < B. c.Cl < O < C < B. d.Cl < O < B < C.

31. © 2015 Pearson Education, Inc. The correct order of increasing electron affinity (most negative  least negative) is a.O < Cl < B < C. b.O < Cl < C < B. c.Cl < O < C < B. d.Cl < O < B < C.

32. © 2015 Pearson Education, Inc. Most metal oxides form _______ solutions when dissolved in water. a.acidic b.basic c.neutral d.amphoteric

33. © 2015 Pearson Education, Inc. Most metal oxides form _______ solutions when dissolved in water. a.acidic b.basic c.neutral d.amphoteric

34. © 2015 Pearson Education, Inc. Most nonmetal oxides form _______ solutions when dissolved in water. a.acidic b.basic c.neutral d.amphoteric

35. © 2015 Pearson Education, Inc. Most nonmetal oxides form _______ solutions when dissolved in water. a.acidic b.basic c.neutral d.amphoteric

36. © 2015 Pearson Education, Inc. The metalloid with the least metallic character is a.As. b.B. c.Ge. d.Sb. e.Si.

37. © 2015 Pearson Education, Inc. The metalloid with the least metallic character is a.As. b.B. c.Ge. d.Sb. e.Si.

38. © 2015 Pearson Education, Inc. A soft gray solid reacts with water to form a flammable gas and a basic solution. The solid is most likely to be a a.noble gas. b.halogen. c.group IIA metal. d.transition metal.

39. © 2015 Pearson Education, Inc. A soft gray solid reacts with water to form a flammable gas and a basic solution. The solid is most likely to be a a.noble gas. b.halogen. c.group IIA metal. d.transition metal.

40. © 2015 Pearson Education, Inc. Ozone is an allotrope of which element? a.hydrogen b.oxygen c.sulfur d.chlorine

41. © 2015 Pearson Education, Inc. Ozone is an allotrope of which element? a.hydrogen b.oxygen c.sulfur d.chlorine

42. © 2015 Pearson Education, Inc. Unknown solid X turns a Bunsen burner flame green and produces a purple color on reaction with NaOCl. X is a.BaI 2. b.BaBr 2. c.SrI 2. d.SrBr 2.

43. © 2015 Pearson Education, Inc. Unknown solid X turns a Bunsen burner flame green and produces a purple color on reaction with NaOCl. X is a.BaI 2. b.BaBr 2. c.SrI 2. d.SrBr 2.

44. © 2015 Pearson Education, Inc. The noble gases a.are monatomic. b.have filled s and p subshells. c.are generally unreactive. d.All of the above.

45. © 2015 Pearson Education, Inc. The noble gases a.are monatomic. b.have filled s and p subshells. c.are generally unreactive. d.All of the above.