Trashball Chapter 7 8 9 Test review Each

Trashball Chapter 7, 8, 9 Test review

• Each team will answer the question on their whiteboard in the designated amount of time. • When asked, every team will show their boards. • If your team gets it right, one person on your team shoots for points. • Make it and you get the points. • Miss it and it’s better luck next time! • Shooters must rotate! Directions

• Which of the following is true? a) The exact location of an electron can be determined if we know the energy. b) Ni has two unpaired electrons in its 3 d orbitals c) In the buildup of atoms, electrons occupy the 4 f orbitals before the 6 s orbitals. d) The electron configuration for [Kr]5 s 24 d 105 p 2 is a noble gas. Chapter Seven

• What group of elements have 7 valence electrons? A) alkali metals B) halogens C) transition metals D) noble gases Chapter Seven

• Which of the following elements has the largest ionization energy? A) O B) Li C) Ne D) Be Chapter Seven

• Which of the following statement is false? A) A sodium atom has a smaller radius than a potassium atom B) A fluorine atom has a smaller ionization energy than an oxygen atom. C) A neon atom has a smaller radius than an oxygen atom Chapter Seven

• A line in the spectrum of atomic mercury has a wavelength of 258 nm. When mercury emits a photon of light at this wavelength, the frequency of light is A) 8. 61 x 10 -16 s-1 B) 77. 3 s-1 C) 7. 70 x 10 -19 s-1 D) 1. 16 x 1015 s-1 Chapter Seven

• In which pair do both compounds exhibit predominantly ionic bonding? A) SCl 6 and HF B) Na. NO 3 and CH 4 C) KI and O 3 D) Li. Br and Ba. O Chapter Eight

• Atoms with the no electronegativity differences are expected to form A) ionic bonds B) polar covalent bonds C) nonpolar covalent bonds D) no bonds Chapter Eight

• For the elements Cs, F, and P the order of increasing electronegativity is A) F < Cl < Cs B) Cs < Cl < F C) Cl < Cs < F D) F < Cs < Cl E) none of these Chapter Eight

• • • I. BH 3 II. NO 2 III. SF 6 IV. O 3 V. PCl 5 • How many of these molecules obey the octet rule? A) 1 B) 2 C) 3 D) 4 E) all of above Chapter Eight

• • • I. BH 3 II. NO 2 III. SF 6 IV. O 3 V. PCl 5 • How many of the molecules have no dipole moment? A) 1 B) 2 C) 3 D) 4 E) They are all polar. Chapter Eight

• • • I. BH 3 II. NO 2 III. SF 6 IV. O 3 V. PCl 5 • Which of these molecules show resonance? A) I, II B) II, IV C) II, V D) III, IV E) III, V Chapter Eight

• What Carbon in this molecule has tetrahedral bonding? A) 1 B) 2 C) 3 D) 4 E) all Chapter Eight

• Which of the following molecules contains a double bond? A) NH 3 B) H 2 O C) CO 2 D) none of the above Chapter Eight

• The hybridization of the central atom in Cl. F 2+ is: • a) sp • b) sp 2 • c) sp 3 • d) dsp 3 • e) d 2 sp 3 Chapter Nine

• Which of the following does not contain at least one pi bond? • a) HCN • b) O 3 • c) C 2 H 4 • d) C 3 H 8 • e) All of the above (A-D) contain at least one pi bond. Chapter Nine

• Which of the following substances contains two pi bonds? • a) C 2 H 4 • b) C 3 H 8 • c) C 2 H 2 • d) C 2 H 6 • e) CH 4 Chapter Nine

• Consider the following Lewis structure: What is the hybridization of the atoms O, C-1, C-2, and C-4? • a) sp 2 sp 3 sp 2 • b) sp sp 3 sp sp • c) sp sp 2 • d) sp 2 sp 3 • e) sp 3 sp sp sp 2 O C-1 C-2 C-4 Chapter Nine

• • • Slide number: 3) B 4) B 5) C 6) B 7) D 8) D 9) C 10) B Answers…. . • • • 11) C 12) B 13) A 14) A 15) C 16) C 17) D 18) C 19) A