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oo T-Mobile LTE 9:44 AM Touch to return to call 07:27 bbhosted.cuny.edu 89% . (27) The ground state electron configuration of a sulfur atom is shown below what is the ound state clectron ofthe ion S Answer( (28) Atoms with the bigpest radii occur in the A) botlom lef B)top right C) botlom riht region of the periodic table D) top left E)middle Answer( (29) Hydrogen can form two diffcrent ions: a hydrogen ion (H", and a bydride ion (H Which staiement conceming these ions is FALSE A) The H'ion is a cation formed by the loss of one clectron; this ion has no valence electrons B) The H uotisanion formed by the gain of one electron, this ion has a full n-1 energy level. C) The hydeogen ion and the hydride ion are isotopes D) The hydrogen ion and the hydride ion have the same number of prolons E) The hydrogen ion and the hydride ion have difficrent sincs Answer( (30) How many neutrons are present in an atom of the isotope ,Li? A) 3 B) 4 G7 D) 10 E None of the choices are correct Ans: B 31) Microwaves, light, and X-rays are all forms of A) electricity B) high energy clectrons C) electron repulsion D) electromagnctic radiation E) radioactivity Answer( (32) How many orbitals are in ansublevel? How many in a sublevel Answer

Explanation / Answer

27. b

28. bottom right

29. hydrogen ion and hydride ions are isotope

30. answer : 3

31. electrmagnetic radiation

32. C. s = 2 and p = 3

33. S2-

34. b. Ge

35. c. 4

36. c. 1s2 2s2 sp6 3s2 3p4

37. b. 1s2 2s1

62. b. H-F

63. d. FeBr3

64. d. Na2SO4

65. d.

66. c. PF5

67. a. linear

68. c.

56. c. calcium and bromine

57. e. carbon and oxygen

58. e. consist of 4 electron between A and B

59. a. 0

60. e. 16

61. c. trigonal pyramidal

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