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Which
atom in the ground state has only one unpaired electron in its valence shell?
A.
Aluminum
B.
Silicon
C.
Phosphorus
D.
Sulfur
The shape and bonding of a diatomic bromine molecule are best described as
A.
Symmetrical and polar
B.
Symmetrical and nonpolar
C.
Asymmetrical and polar
D.
Asymmetrical and nonpolar
What is the oxidation number of sulfur in H2SO4?
A.
0
B. -2
C.
+6
D.
+4
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