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