Atomic Structure
DIRECTIONS: When answering parts b and c, fully explain you answer for
full credit.
1.
Sulfur is a nonmetal with six valence electrons.
a.
Write the ground state electron configuration for sulfur.
b.
Which fundamental atomic theory is violated by the following
list of quantum numbers representing sulfur’s valence
electrons?
n
l
ml
3
0
0
3
0
0
3
1
1
3
1
1
c.
ms
-1
2
-1
2
-1
2
-1
2
Which fundamental atomic theory is violated by the following
list of quantum numbers representing sulfur’s valence
electrons?
n
l
ml
3
0
0
3
0
0
3
1
-1
3
1
-1
ms
-1
2
+1
2
-1
2
+1
2
2.
For the element antimony, list a possible set of values for the four
quantum numbers of all the valence electrons if each is in its ground
state.
3.
Identify the following elements:
a. An excited state of this element has the electron configuration
1s22s22p53s1
b. The ground-state electron configuration is [Ne]3s23p4
c. An excited state of this element has the electron configuration
[Kr]5s24d65p26s1
d. The ground-state electron configuration contains three
unpaired 6p electrons.