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Ch. 3 Review
Test Description: Practice with atomic structure and electron configuration.
Instructions: Answer all questions to get your test result.
1) What is the atomic number of platinum?
A
91
B
84
C
78
D
15
2) What is the mass number for the nitrogen-15 isotope?
A
8
B
7
C
15
D
14
3) What notation best shows the number of paired and unpaired electrons?
A
orbital box notation
B
electron configuration notation
C
nuclear notation
D
noble gas notation
4) How many neutrons are in the zinc-67 isotope:
A
37
B
67
C
65
D
30
5) How many electrons are there in a bromine ion whose charge is -1?
A
80
B
34
C
36
D
35
6) How many unpaired electrons are there in a carbon atom?
A
none
B
3
C
1
D
2
7) Which orbital is at a lower energy with respect to the filling order?
A
4s
B
6p
C
5f
D
3d
8) In the hotel analogy, orbitals correspond to....
A
people
B
beds
C
floors
D
rooms
9) In the hotel analogy, main energy levels correspond to....
A
beds
B
rooms
C
people
D
floors
10) The name of the isotope with 33 neutrons and 25 protons is....
A
cerium-58
B
arsenic-58
C
manganese-58
D
none of these
*select an answer for all questions
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