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