Chem101 Molecular Models Worksheet By Dr. Cheng-Yu Lai With Answer Key Page 2
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182014Spring CHEM101 Ch9-10 Review Worksheet
Modified by Dr. Cheng-Yu Lai,
Answer: E
6) Give the complete electronic configuration for Br - .
A) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 4p 6
B) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 4d 10 4p 6
C) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6
D) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 5
E) 1s 2 2s 2 p 6 3s 2 p 6 4s 2 3d 10 4p 6
Answer: C
7) Give the complete electronic configuration for Ca 2+ .
A) 1s 2 2s 2 2p 6 3s 2 4p 6
B) 1s 2 2s 2 2p 6 3s 2 3p 6
C) 1s 2 2s 2 2p 6 3s 2 3p 5
D) 1s 2 2s 2 3p 6 4s 2 5p 6
E) 1s 2 2s 2 p 6 3s 2 p 6
Answer: B
8) Give the complete electronic configuration for S 2- .
A) 1s 2 2s 2 2p 6 3s 2 4p 6
B) 1s 2 2s 2 2p 6 3s 2 3p 6
C) 1s 2 2s 2 2p 6 3s 2 3p 5
D) 1s 2 2s 2 3p 6 4s 2 5p 6
E) 1s 2 2s 2 p 6 3s 2 p 6
Answer: B
9) Place the following in order of decreasing magnitude of lattice energy.
NaF
RbBr
KCl
A) RbBr > NaF > KCl
B) NaF > KCl > RbBr
C) KCl > NaF > RbBr
D) NaF > RbBr > KCl
E) RbBr > KCl > NaF
Answer: B
10) Place the following in order of increasing magnitude of lattice energy.
CaO
MgO
SrS
A) MgO < CaO < SrS
B) SrS < MgO < CaO
C) SrS < CaO < MgO
D) CaO < MgO < SrS
E) CaO < SrS < MgO
Answer: C
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